Allison TCM

Allison TCM 06-15 Chevrolet GMC 2500 3500 Pre-Programmed

(205 customer reviews)

$0.00

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***AS OF 9/15/22 WE ARE CURRENTLY OUT OF TCMS FOR 2006-2015 TRUCKS. WE HAVE NO ETA***

Out of stock

SKU: RDS-DM-TCM Categories: , ,

Description

Allison TCM

***9/15/22 WE ARE COMPLETELY OUT OF 2006-2015 TCMS.***

The 2006 to 2015 GM Duramax diesel are prone to Allison TCM failure issues. The most common issue is U0101 “loss of communication to the transmission control module”. Hard transmission slamming from gear to gear, range shift inhibited and gear indicator not displaying, and on the newer trucks transmission temperature not displaying.

Features of this Allison Transmission Control Module:

  • These are the latest calibration for your truck you do not need to take your truck to the dealer or repair shop for it to be re-flashed
  • Completely pre-programmed per your VIN – plug and play and back running within minutes
  • These are brand new units NOT refurbished
  • For 06-15 Silverado/Sierra 2500/3500. Does not fit 4500/5500 trucks!
  • Lifetime Warranty to original purchaser

As Of 2/6/22 UPS return label will be included in the box for the core and shipped back on good faith; we aren’t charging up front.

If you have TCM tuning with either Ezlynk or EFILive on your engine tuning, this will sync with no problems. You will be able to re-install your tunes onto our Allison TCM with no problems.

Next Day Air orders need to be placed by 2pm Central time.

CALIFORNIA WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

3.8/5 (135 Reviews)

Additional information

Weight 4 lbs
Dimensions 4 × 7 × 7 in
Brand

Allison

205 reviews for Allison TCM 06-15 Chevrolet GMC 2500 3500 Pre-Programmed

  1. Luigi Seli –

    Fair Price; paid for overnight delivery and unit was delivered as expected; plugged the TCM in and the truck came back to life and I was up-and-running again
    Thanks Ryan

  2. Ryan Pierce (verified owner) –

    Thanks for reaching out to me on truckmaster YouTube channel. I received the tcm in just 2 day excacly as I order put it in my truck and everything worked as it should again. Thanks Ryan’s diesel truly appreciate you getting my truck up and running again and price was fair.

  3. Seth adams –

    Excellent product

  4. Jeremy –

    Excellent service !!! Super fast shipping !!! Got me on the road right away !!!!! thank you !!!!

  5. Ashley –

    Removed the old TCM, installed the new & it worked perfectly! 2011 GMC 2500HD Denali with EFI Live

  6. Anonymous –

    Sooo convenient to be able to “plug and play“ versus buying a TCM and having to deal with a dealer to program it!

  7. Robert Callaway (verified owner) –

    PLUGGED RIGHT IN & WORKED THE FIRST TIME

  8. Brent –

    Plug N play just as advertised. Drives like it did off the lot. If you are in need of one don’t waste your time and money going to a dealership for a flash.

    Awesome job guys!!

  9. Joe –

    works as it should – good product

  10. Charles Corl –

    Works as it should. Preprogrammed no lights.

  11. Jake –

    Unit plugs right in. Worked great. Actually seemed to be better than my factory tcm that came with the truck. Could be my imagination. Customer service is great if have any questions or issues. Ryan is a super nice guy and will do anything to make sure you are satisfied. Thanks again!!

  12. Albert –

    Plugged it in and it worked great. Great product and great service. Thank you!!

  13. Anthony –

    TCM showed up and was plug and play works great and shift inhibited code has gone away and truck is like new

  14. Seth –

    Product as described worked perfect!
    Friendly and helpful staff! Shipped out right away! Would not hesitate to purchase other parts or services!!!
    Thanks!!!

  15. Anonymous –

    Works great

  16. Aaron –

    Worked perfectly. Half the price of the dealer.

  17. Dillon –

    Plug and play, preflashed to your VIN. Takes less than 5 minutes to install. Have about 100 miles on it and so far so good. Ordered at 3pm and shipped out same day. I had a few questions about it and called Ryan himself. I left a message and he called me back within 30 mins and answered all the questions I had. Great customer service

  18. Jeff –

    Works great!!!

  19. Anonymous –

    Came in super fast- works great

  20. Aaron b –

    Very easy to order and showed up the next day even ordering it after 4 pm

  21. Nathaniel –

    Part shipped within hours of ordering it and worked perfect! I would absolutely recommend these guys to anyone.

  22. Oldguy –

    Great customer service! Helpful, fast shipping!!

  23. Bob monteer –

    Part worked great right out of the box for my tcm.

  24. Anonymous –

    Perfect plug and play product worked perfect with no issues and solved my shift warning lights and rough shifts while driving. Drives like a new truck

  25. Travis –

    Works great just like they said, just plug in and your driving

  26. Cody Freitag –

    After months of trying to avoid biting the bullet of a tcm purchase I finally found this option and gave it a shot. Got it and plugged it in as soon as truck acted up and it solved my troubles! Beyond pleased with the customer service and quality of product will definitely be purchasing and recommending them in the future

  27. Rick Jordan –

    Service was Outstanding! Fast, Simple Checkout! Product was delivered and performed as expected and in a Very Timely Manner! Thank you So Much!!

  28. Anonymous –

    Worked perfect

  29. Clayton Sutter –

    The product showed up on time, I plugged it into my truck and works perfect. Definitely pleased with everything. I will be back to purchase more product.

  30. Stephen –

    Came pre-programed and worked perfectly.

  31. JC –

    Item arrived quickly and on-time. The team at RD pre-programmed it. Install took 5 minutes. Truck runs good and I am now worry free. Thanks

  32. Jon Stahulak –

    Great communication. Fast shipping. Helpful staff. CHEAPER than the competition. What’s not to love? New unit was plug and play.

  33. Brian hulsey –

    Worked better then the factory new did when it was new great job great friendly service when I called needing help bent over backwards to help me will use them again in the future

  34. Chris –

    Worked like a charm

  35. Blake –

    Works perfectly saved an extra trip to the dealer for programming.

  36. William Goins –

    Great product!! It fixed the problem that I was having. Also it has improved fuel mileage. Was getting 14.4 on highway and has improved to 18.3mpg.

  37. JENNIFER TREVINO –

    PERFECT MATCH, WORKED GREAT, EXACTLY WHAT I NEEDED

  38. David –

    This part worked exactly like it was supposed to Plug and Play took less than 5 minutes to install works perfectly

  39. April Field –

    Ryan’s was the easiest, cost effective, and quickly received my product! I will definitely be using them in the future for all other diesel needs. Great Company & Great customer service!

  40. Joe –

    Fast shipping works flawlessly

  41. Rich –

    Ordered the part with overnight shipping and it arrived 11am the next day. It took about 5 minutes to install and once the relearn was done the shifts were like before if not better.

  42. Mark Zukowski Jr. –

    The folks at Ryan’s diesel service get the job done. They have very fair pricing and excellent service and warranty. Definitely a great business to support and use their products.

  43. Ryan –

    Great product and great service will definitely be coming back!

  44. Logan –

    I’m in Canada shipment was very quick , a lot cheaper than one from local dealer ,will buy again , thanks so much

  45. Shane –

    I got the TCM and plug in and works great. Ryan’s diesel fast on shipping it no problems. Thank you

  46. Bryan –

    Works as described. Was quoted $1600 to fix this at a local repair shop. Was able to install it myself and save over $1k.

  47. Bryce –

    works as it should no complaints I had a notification from ups that my order had shipped about 2 hours after placing the order very quick response

  48. Cal from NH –

    I’ve Installed multiple of these pre-programmed TCM’s and they’ve all been good. Much more convenient than towing to dealer or hiring mobile diag guy to flash. I don’t have a J-box to flash mods.

  49. James S –

    My 2011 2500HD with 90k miles decided to throw a fit one day by displaying “range shift inhibited” and the gear indicator flashing then disappearing. Hmmm great. Check issues with OBD reader which lead me to TCM issues. Paid for pre-programmed TCM with 2 day shipping. TCM arrived and it’s a very simple swap out. Truck back up and running in no time. Buying from Ryan’s saved me an expensive trip to the dealer.

  50. Kurtis –

    the tcm shipped and showed up very quickly. Installed right in and worked perfectly truck was back up and going in minutes

  51. Kevin –

    My TCM failed on the way to the river while towing my boat. Local GMC dealership wanted 1000.00 and a couple of days to fix the problem. 25,000 miles on my truck no warranty, no thanks. Ordered my TCM from Ryans diesel. It showed up and worked great out of the box. Towed the boat and no problems.

  52. Shane Chapman –

    Worked as stated

  53. Ron Bowen –

    Ordered a programmed TCM for my Duramax . Received the next day and was back in the road in 5 min. Trans shifts better than ever. Thanks!?!!

  54. Les Rose –

    Ordered on line with overnight shipping, had it the next day. Had a couple of questions which were answered completely. Shifting is
    way better, absolutely plug and go.

  55. Justin –

    Super simple, plug and play TCM. I thought about ordering from Amazon, then having it flashed at a dealer but I’m glad I didn’t because this also has a lifetime warranty.

  56. Sarge –

    My TCM took a dump. Priced a replacement at several locations and found Ryans to be the best bang for the buck. Service was better than expected. Truck runs like new. Lifetime warranty on part. Hopefully I shouldn’t have to use it but glad to know it’s there should I need it. First impressions are lasting. This one was positive.

  57. Jeff Daniels –

    Great deal easy to install.

  58. Scott –

    It was easy plug and play just like advertised

  59. Darren –

    Plug and play driving in minutes!

  60. JD –

    Bought a truck with symptoms such as no indicator lights, stuck in 3rd gear (limp mode), hard shifting, “service stabilitrac” light on. Read online most likely bad TCM. Bought this new TCM, plug and play just as advertised, and she runs beautiful. Nice product! Thanks Ryan’s Diesel!!

  61. Rod Hogaboam –

    Installed and worked perfect. Thanks

  62. charles ballard –

    Quick shipping. Works perfect

  63. greg –

    Worked perfect

  64. Erv –

    Works great, shipped as requested received on time

  65. StevenT –

    So far so good, took care of all the typical symptoms from my failing TCM. Thanks!

  66. Dave –

    We received the product, replaced it with the new one, and we were back on the toad within a matter of minutes. Thank you for you prompt service and product.

  67. David –

    Plug n GO. Works great. No down time.

  68. Brett Wyllys –

    Couldn’t be happier. Great product, quick shipping. Plug and play, driving again in 5 minutes. Already noticing a difference in shifting. Good firm shifts. Also fixed the issues of “service brake system” light coming on, and trans temp gauge being finicky. Excellent product, and great price!

  69. Dan –

    Just had to write a review!! Was skeptical but pre programed TCN WAS EXACT REPLACEMENT AND WORKS PERFECT.very impressed

  70. Ben selby –

    Great product and a quick fix for the U0101 code.

  71. Ben –

    Way cheaper than all the other places I looker and I have EFI Live in my truck and it went in without a single problem!! Highly recommend this product!!

  72. Danny –

    Installed in about 5 minutes and it fixed my issues.

  73. Scott Blazekovich –

    Plugged it in and everything is perfect. Great product

  74. Adam Slade –

    Literally plug and play. Installed in about a minute, fired up, no codes after 200 miles. Shipping was less than a week. Fantastic service and highly recommend this unit.

  75. Brandon Smalley –

    It works how it is supposed to. Although it didn’t fix the issues I was hoping it would fix I have zero complaints.

  76. Keith Judd’s Pro Service –

    This trans module worked perfect. Just plug and play as advertised. Thanks

  77. Eric Rosencrans –

    Fast shipping, no issues with program. Plugged in and go, trusted product!

  78. Chris L –

    The TCM I ordered arrived on time in perfect condition it was easy to plug it in and get my truck up and running again thank you for your help.

  79. Ray –

    I’m very happy with this TCM. My trucks shifts perfectly now, Thanks!

  80. John –

    When traveling over the holidays we encountered a TCM failure and a really bad repair shop in Vegas. Thanks to Ryan’s Diesel service, the New preprogrammed TCM and overnight shipping plus easy install saved our trip.

  81. Joseph Keller –

    Very happy with the service

  82. Tyler R –

    Very happy with Ryan’s Diesel! This TCM replacement was at my door within 24 hrs of ordering. Flashed and ready for install. I was back on the road in 5 minutes. I’ve driven 2500 miles on it and so far so good. Great company and fair priced. 2010 GMC LMM Duramax.

  83. Brandon –

    Delivery was fast as promised and the new TCM easily plugged in and worked flawlessly.

  84. PD –

    UPS delayed the shipment and Ryan was awesome. Call me to make sure I did get the part. Took me 5 minutes and 2 new snap pins and it is running like a champ. Highly Highly recommend Ryan’s Diesel

  85. Ryan Pascoe –

    Came quickly and got me out of a jam thanks again

  86. Michael –

    Hey everybody, order this from Ryan”s got it a couple of days. Put it in Ten minutes, fired up the 2500 diesel
    put in drive and away we went. shifted perfect, plowed snow no problem at all. I definitely would buy from them again. Keep up the good work. Mike

  87. Michael –

    Worked great highly recomend

  88. CJ –

    Excellent customer service. You can drop it in the truck in 5 minutes. Shifts perfect and better than stock.

  89. Mathew Hastings –

    I wish all my part ordering was this simple and quick. Ordered at 2:30 pm and by 4 pm same day they already had it in the mail with a tracking number. Will def do business here again.

  90. Doug Oldaker –

    Arrived in a couple days easy to install and worked as it should great product highly recommended.

  91. Ron Foster –

    Works perfectly took the stock one out put a new one in no problems

  92. Brian Branstetter –

    I ordered a tcm for my Allison and it was here fast.plugged the tcm into my truck and never looked back,got me back to work thanks guys will be using this place again

  93. Russ –

    Replace original 2007-Classic TCM as a preventive maintenance measure. New unit plugged right in and works perfectly…actually seems to shift smoother now. I’m keeping the original stored in my truck as a backup.

  94. Jimmy –

    Thank you Ryan’s for value and service in your products. I would definitely recommend.

  95. Bobby Murrietta –

    Very helpful customer service
    Quick response

  96. Brandon Romanoski –

    Easy install. Totally happy wth the TCM

  97. David Gilbert –

    Purchased this item as a preventative measure, at 100,000 mi. Had to purchase new “pop rivets” at the dealer when the originals broke during removal, but otherwise the install was easy. The truck shifts a little smoother, and seems to shift “when it’s supposed to”, with less pedal applied. I can barely feel the up/down shifts anymore. Awesome product! Thanks.

  98. Anonymous –

    Seems to fix the issues that the truck was having and a ton cheaper than dealerships !!!

  99. Joe –

    Exactly 1 week before I was to deliver a 40 foot toy hauler to AZ, my TCM decides to take a dump on me! I didn’t even know that was a THING! I had to get it fixed, and fixed FAST! The dealer wanted a fortune just for the part, and my regular diesel shop wanted over $1400 to replace it. Ryan’s got it programmed to my VIN and sent out the same day for a fraction of the cost! A simple plug and play, and the transmission performed flawlessly on my trip.

  100. Khris R. –

    The item was shipped the same day and was a direct OEM replacement. Easy repair.

  101. Mark Skala –

    Ordered the TCM on Wednesday, got an email that it was ready by Mid Thursday. Picked it up Friday afternoon and installed it in about 5 min. Took the truck for a drive and instantly could tell that the trans shifted much smoother, could barely feel it shifting. Its been 5 days and have not had my no shift indicator, shift inhibited or TCM codes. Ryan and Mark were very helpful and answered all my questions, will definitely be going back if I have any issues with the truck.

  102. Mike May –

    The whole process from placing the order to taking my truck for a test drive was absolutely stress free. The new TCM shifts flawlessly, no more issues with my truck not engaging in gear. Very easy repair to make, no tools required. Very pleased with the service I received from Ryan’s. Top notch.

  103. ivan mora –

    can describe how satisfied I am no regrets work excellent

  104. Peter Gill –

    Exact match and fit to original GM item and preprogrammed which makes it a breeze to install with no running about to dealers to get it flashed. This is great as here in Australia these trucks have almost no dealer back up and are full imports.

  105. Kelly Pfeiffer –

    Perfect part, programmed so that it was a plug and play situation. Great price, better than anyone else could come close. Thank you

  106. Brian –

    Fix my problem

  107. Anonymous –

    Fast shipping and plugged it in and good to go!

  108. Tyler –

    Exact part I needed fully set up just had to plug in and drive away great service from Ryan’s they had it to me fast!

  109. Pedro –

    Extremely Easy to order just provide your VIN #. Ryan’s Pre Programed my TCM. I simply removed old unit and installed new unit. It’s a peace of mind. I was having some weird down shifts in automatic mode. Getting ready to head to Baja. So it can’t hurt to play it safe. I kept my old unit just incase. Thanks Everyone at Ryan’s for great products! I highly recommend this for your Dmax! Truck seems to shift great now!

  110. Phil Errington –

    This shipped fast and was exactly what I needed. It took less than 10 minutes to install and I was back on the road

  111. Aaron V –

    Mine wasn’t actually bad but shipping was fast and it was flashed like its supposed to be. Just going to leave it in the truck for peace of mind now. Would recommend!

  112. Shaun McDuffie –

    I ordered this and paid for next day air shipping. Produce arrived next day and was installed in 5 minutes. Worked exactly as advertised. I was back on the road and could not be happier with my purchase. I will recommend to all my diesel friends.

  113. Mark –

    Ryan’s Diesel Service has my business! Best price and fast shipping. Got me back on the road quickly – thank you! Awesome job!

  114. Anonymous –

    Easy install and took care of my issue.

  115. Ethan –

    Highly recommend. Good price, great warranty and quick shipping. Plug it in and you’re headed down the road. Only took 2 minutes to install. Would purchase from these guys in a heart beat.

  116. Jose Urbina –

    This was definitely a great investment. We are back on the road.

  117. jesse –

    fast shipping works correctly

  118. Mike D –

    Awesome. Fast shipping. Excellent service. Totally recommend!

  119. John Silva –

    I had all kinds of transmission issues come out of the blue from getting stuck in gear to shifting hard to sitting still with no indication of what gear on my 2011 duramax
    Dealer
    Told me could find a code
    Have to wait a week to get it in for trouble shooting did some research on line found these guys at Ryan Deisel read there post ordered it and my truck was back on the road in less than a week without going to dealer
    These guys are the best thanks again
    Johnny

  120. delbert cambridge –

    service excellent

  121. Juan Lopez –

    It was easy to replace and fixed my issue, I couldn’t be happier with this tcm

  122. Timothy McElfish –

    Part for right up I was in a rush for time and i was back on the road in 5 minutes, worked perfectly after a few drives relearning the trans

  123. Scott Peterson –

    Super simple installation, but only shows proper gear when in manual-shift mode. In auto-shift, always displays first gear.

  124. JR –

    8 minutes later, runs great!
    Very fast shipping.

  125. Alan –

    Fast shipping
    Plug in and it worked perfect

  126. Stacy –

    Fast service and excellent results. Big thanks to Sam for making sure the module was shipped the same day even though I was late in ordering.
    Great service!

  127. Lmm Duramax –

    Out of the blue my truck threw a service stabilitrak and about 10 really random tcm fault codes. Super fast shipping on Ryan’s part and ups(paid the extra few bucks for 2 day shipping). Truly is plug and play and no issues since. If that’s not enough it has a lifetime warranty(who does that for electrical components!?)They definitely have a new customer!

  128. Maurice Marable –

    Great product even better customer service believe her name was Carrie but she was great and knowledgeable about the product!!!!!!!!

  129. Sean –

    It worked as it should. Plug in and go. Shipped promptly and packaged well.

  130. Jake S –

    Perfect replacement part. Already programmed, I swapped it out and reset my error codes and it worked PERFECTLY..

  131. B. Boudreaux –

    When i ordered, it took 20-30 minutes, and i received a tracking number saying it was shipped. Two days later when it came in, took two seconds to install, and has been doing great since. No special requirements or anything just plug and play.

  132. Nathan D –

    Had a weird low RPM shift into 5th & 6th. This new tcm remedied that. Truck runs great now, thanks alot!

  133. Anthony Cofske –

    I had noticed a while ago the temp for the transmission stopped working then the gear selector stopped thought it was the cluster. Then started getting the lost communication tcm truck went into limp mode. This part fixed everything

  134. Sand Junky –

    Friendly knowledgeable staff got me the right part fast and my truck is up and running

  135. jeffrey Neagle –

    Easy deal I ordered and installed 2 days later
    With next day freight I didn’t have to mess around with buying from dealer then paying for a flash to match my truck
    That would have set me back at least a week
    I ordered and installed two days later and was back on road
    Highly recommend Ryan’s and as a plus he guarantees the fail prone gm part for life

  136. Benjamin –

    Works as it should fast shipping thanks.

  137. Jeff –

    Great replacement and was totally plug and play! Rapid shipping!

  138. Aron –

    Pulled old one out and put new one in. Took about 5 minutes, no programming needed. Started truck and drove 50+ miles no problem, seems to do what is advertised.

  139. Jim –

    Product was new and reprogrammed by Ryans. Took 5 minutes to install and functioned like a new truck. No worries after having wrongly diagnosed and changed bad NSBU switch inside tranny.

  140. Jody Watson –

    Easy to install and worked perfectly!

  141. Russ –

    Fast shipping seems to be a good quality product truck runs through the gears smother bought this for insurance purposes didn’t want to be stranded on the side of the road with my 32 ft 5th wheel . 06 GMC 3500 LBZ.

  142. Mike –

    Fast delivery and easy to install. Worked great and no problems.

  143. Greg –

    I was just about give up on my truck. got that TCM put in. That was it runs great can’t believe it.THANK You

  144. Graham –

    Ordered this and it was sipped to canada. Arrived in 4 days plugged it in and working better than expected my 2012 duramax is shifting better than ever like butter lol excellent service

  145. Jerry –

    Was easy to order on website. Received in a couple days. Transmission shifts perfectly.

  146. Aaron –

    I purchased this TCM as a precaution as I have heard the stock ones are prone to failure. The unit Ryan sells is supposed to eliminate the component failure. Unit was shipped quickly.

  147. Jeff White –

    Thank you so much to Ryan’s Diesel for getting me a good quality ac delco part!! I’m OC I like to get the right parts the first time and do not like going to the dealership if at all possible. I can’t believe I got this TCM so quickly and already flashed for about 10 bucks cheaper than I could get it at the local parts store that I would still have to have someone flash the module. I called all around and luckily I found Ryan’s diesel (via truck master on YouTube). Couldn’t be happier that is a great service!!

  148. Jason –

    Super fast shipping. Received the part unplugged the old one installed the new one and no problems. So happy to have my truck back!

  149. Johnny Irons –

    I ordered the TCM and paid for next day air. As promised I received it the next day. It took me about 15 minutes to put it on. It performs as they said it would. I’m very satisfied with the entire process from start to finish.

  150. Stephen R Woods –

    product was as advertised and all programmed. installed saturday and then took a week long trip from indy to VA to Nc and back to indy. absolutely no problem. transmission worked like the origional

  151. ronald olislaeger –

    works great

  152. johnny irons –

    Ordered the TCM on July 19 2021 and paid for overnight air. The order was received July 20 2021 as they said it would. Installed the part in about 15 minutes and vehicle has been shifting like a new one. Very satisfied with all aspects of of the transaction with Ryan”s Diesel and would recommend them to anyone. There should be a better location (cooler) to mount this TCM.

  153. Josh –

    My stock TCM left me high and dry..dealer wanted $750 + $175 to program…and wanted me to tow Iit
    in!! Your TCM saved the day!

  154. Terry Howell –

    Great service! Plug and play! Couldn’t ask for more.

  155. Kurk Radford –

    Awsome product, comes programed so saved me about $800 to $1000. Installed and running perfect in 10 minutes.

  156. Jeff Lee –

    Fired right o

    Back on the road.

  157. Tom K –

    Item worked as advertised. Saved the trouble and expense of dealing with a dealership to program. Perfect product

  158. S. Peters –

    Got it in a couple days of ordering, switched out the old one, drove around to let it learn my tranny, no issues or problems. It is simply plug and play, no trip to the dealer, already flashed to my trucks VIN.

  159. Chris Turner –

    Thank you for making the YouTube video with Truck Master. Ordered one, got super fast shipping and works as advertised, Perfect fix!

  160. Kevin McMaster –

    Worked

  161. Josh Holliday –

    Ordered and shipped next day air. Got it installed in about 4 minutes, and we were back in business. Best price. Great service. Quality product.

  162. Anonymous –

    Fast shipping worked perfect.

  163. James Jacobs –

    Easy order.. very nice lady that answered the phone.. plug and play worked perfectly

  164. Bryon –

    This product works great and it’s plug and play as advertised.
    Nice work as usual.

  165. John –

    Thank You for the new transmission control module. My 2009 Duramax was throwing “service traction control” codes and occasionally hesitating to move . Plugged in new module and all my issues disappeared.Didn’t want to end up on the shoulder somewhere. Now I have my old unit behind the seat for backup.

  166. Eddie –

    Works Great! Couple min install very straight forward. Fast shipping and outstanding customer service.

  167. william –

    works great it seems too shift better than the stock one 13 gmc cclb dwr with 267,000 , next day shipping figgen beautiful… the dealerships hear were a month out to reprogram the one i had so returned it, ordered one from ryan’s ,got it installed it in 2 day’s …great job guys. thanks.

  168. RT auto repair –

    worked perfect

  169. Neal Pulley –

    Excellent product!!

  170. Richard o –

    Took a few miles to learn thank you

  171. Terry –

    All good, plug and play TCM module , fixed transmission non-op issue, fast shipping, thank you

  172. hunter –

    So far so good! I went from a truck that could not move to a truck that’s running and shifting fine now. Great deal!

  173. Steve –

    Plug and play at its best. Installed and back to normal functions in less time than a lunch break.

  174. Joe D. –

    Up and running in less than 10 minutes. Quick delivery also.
    Would buy again from these guys.

  175. David Roy –

    Well worth the money I installed it myself within 10 minutes and the product works perfectly. Worth every dollar

  176. Chartlie Williams –

    Keeping as a spare but very impressed with Ryan’s.
    I ordered in the afternoon and it was here the next day.
    Amazing

    Thanks !

  177. Saul Morales –

    Works great

  178. Chris Tortorello –

    It got my truck started up again after sitting for 2 weeks. Initially it made my trans shift hard but after a day of driving it went back to normal.

  179. Jeff Smith –

    It worked great and had within two days. Great service and quick.

  180. Evan Harlow –

    Came a day earlier than i expected, swapped out in minutes and ran like a dream the minute it was installed, over all thrilled with the purchase

  181. Jack Snow –

    I receive my TCM and it was plug and play
    Thanks JS

  182. Brandon –

    Took care of the issue, only took 3 min to put in. The shipping was outstanding.

  183. Josh –

    Plug and play, no hassle, and shift points are better than the stock unit.

  184. Jason –

    This works . Shifting normal better fuel

  185. Jason –

    Smooth operator now pre programmed great deal ..best deal

  186. Lloyd –

    Excellent product that performs as described.

  187. JUSTIN POARCH –

    It’s been 5 days and about 250 miles without any issues. Easy removal and replacement. Took care of my CEL and code U0101, TCM not communicating.

  188. James Boswell –

    This product exceeded my expectations! My truck (Chevy 3500 HD) shifts like a new one. Up shifting and down shifting are super smooth. No more BANG! when down shifting on an uphill pulling our 5th wheel. Thanks Ryan’s Diesel!

  189. Fred Horn –

    Recieved module within 3 business days as promised. Was a simple 5 minute process to remove old module, plug new part in, and remount it. TCM worked immediately with only one slightly rough shift before smoothing out . Restored lost back-up lights, gear indicators and appears to have resolved frequent limp mode activation.

  190. Mike –

    Product was simple to install and functions great. Thank you RDS

  191. Brendon –

    Some important things you need when servicing your diesel. Quality, reliability and performance. These days you need a company you can count on! From questions before purchasing to rapid shipping and a product that is problem free…Look no further than Ryan’s diesel! They got my TCM out the same day and after the install it ran better than before! Easy transaction…look no further!!

  192. Matt Romer –

    Great service and price. I looked at several local places and dealerships to get this part. They all wanted more money for part and to have it programmed. I got a preprogrammed part within a couple of days and it works great. Thank you

  193. Mike Long –

    Worked as advertised I will include a link to a video I made on YouTube to help diagnose to see if you need a TCM or not.
    https://youtu.be/4iSp1gVtTTs

  194. John –

    Extremely happy to have this TCM! Dans diesel enhanced TCM was terrible getting hung up at 45 not knowing if it should downshift or not I thought I was damaging my tranny by the way it acted! Replaced it with this TCM and I cannot be happier shifts better than I expected it feels like my old truck is back! Thank you for a great product and lifetime warranty!

  195. Snipe –

    They sent me the TCM quickly. It works great. My transmission was slamming into gear occasionally. It now shifts so smoothly. I saw your YouTube video with TruckMaster. It was very informative.

  196. Ralph Padilla –

    Wow guys you saved me a bunch of money with this new TCM for my truck. In desperation I took it to the dealer and they did not have TCM in stock waited two and a half weeks with no response from them. Found your tube video on the problem with these TCMs. Went and got my truck back from dealer after they charged me 285.00 dollars for a diagnostic plus a 25.00 dollar disposal fee. Had to pay it for them to release my truck to me. Ordered the TCM from you and installed it and wow it made my day. Worked beautifully. Took it to auto zone and they cleared the check engine light. I recommend you guys very highly.

  197. Richard –

    Unit worked perfect. Fast shipping. Will use this company again in the future . Highly recommend this company !

  198. Cliff S. –

    Worked great truck shifts like brand new, and no Stealership involvement. Thanks.
    Thank you .

  199. Darrell –

    Highly recommend Ryan’s preprogrammed TCM. Took about five minutes to install and instantly fixed “Shift inhibited” message. Truck has never shifted better. I received the TCM in 2 days. Very satisfied with my purchase!

  200. Aaron Bahr –

    Very fast shipping, fixed the problem and I have the comfort of knowing I have a lifetime warranty on the Tcm. Installation was a beeeze. When I factored in getting an unprogrammed Tcm, tow bill to a dealership, getting my computer flashed plus the amount of time that would take and only have a 1-2 year warranty this part was a no brainer! Thank you!

  201. Jeffery Cansler –

    Love the lifetime warranty and after order shipped super fast and I thank you and product worked like it came from factory.. thanks again !!!

  202. James –

    The TCM price is perfect. The lifetime warranty and the preprogramming is fantastic!. Be shure to check your tow haul and manual shift wiring. I found both tiny black wires broke in half that go to the manual shift button. You might
    consider buying a new shift lever also when changing the new TCM as these wires bend back and forth causing them to break.

  203. Kellyfrazier –

    This place is the best they have exalance services and the best prices in the industry they are the place I will always go to for my parts thanks guys.

  204. Robert Dickerhoff –

    Came on time, took less than 1 minute to install, worked immediately! Very happy with the ease of the ordering and how it worked as soon as installed

  205. Joe Jurado –

    Very Satisfied

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