Try a salvage yard. They usually don't reply to email and you have to phone them.

Car-Part.com--Used Auto Parts Market

 

Call Hicksville Auto Recyclers, they specialize in dismantling Duramax vehicles

 

I have the same issue on the same vehicle. I have contacted every part source imaginable and NOONE has the part. I shipped it to CARZONE for rebuild and they shipped it back saying they cannot get the internal parts. Not sure what to do now. If you find a source, please share it (once you have yours). According to GMC, this is a high failure part.

 

Chev dealer told me 1st quarter of 2023 my truck been there 3 months

 

I have a 2013 GMC HD 3500 with the same issue, no TCM's and do not know when they will make any. That was straight from GM! Is there some sort of work around for this problem? I am not sure what to do at this point. I have never owned anything but a chevy or GMC truck, but this pushed me over the edge and I bought a dodge 3500.

 

anything

Just curious did you trade the old truck in or you hanging on to it if the trade it in do they give you anything for a truck with no part being made?

 

I have some insight into this from a conversation I had today with a transmission builder in Boise but the members aren't ready to hear what I was told today so...

 

Well that sounds interesting Rob, do tell 🍿

 

Well...

1) GM/Ford have been "partnering" for truck transmissions ever since they both launched 8spds in their 1/2 ton platforms.

2) GM/Allison had a signed contract for Allison to provide 9spd HD transmissions starting in GM model year 2020.

3) GM canceled the contract to provide the 10L1000 transmission that was co-developed with Ford.

4) Upon GM canceling the 9spd Allison contract, Allison canceled any/all GM spare parts contracts for the Allison 6spd.

5) The Allison "spare part" contract included Allison proprietary TCM's...

 

Oh so unless they have come up with an updated contract, this ‘new’ part number is likely to not be a good part number any time soon…

 

Once GM ran out of their TCM supply, there are zero Allison spare parts inbound to fulfill GM backorders...

 

There is yo my understanding that there is a new part number for the TCM in question

 

rob is correct. i was a gm tech when the 10L1000 came out. i seen the transmission for the first time and told myself that looks like a ford transmission. the case looks identical to the transmissions behind the ford 6.7. as far as i know and was told. gm is building the transmissions under allison authority. which pretty much means their paying allison to beable to put that name on gm built transmissions. i got lucky and previous owner of my 08 put a dans diesel tcm in it right before i bought it.

 

What am I supposed to do?

 

Call your local dealership order part and getting on waiting list

 

Code U0101 and finding replacement TCM (24256861)

Ok, so I know there are tons of threads on this obsolete/backordered TCM.... Has anyone found a good solution other than just waiting to see if GM ever decides to make these again? I've got a perfectly good truck that has been sitting idle 2 months now and no end in sight. My truck is a 2012...

www.duramaxforum.com

 

Code U0101 and finding replacement TCM (24256861)

Ok, so I know there are tons of threads on this obsolete/backordered TCM.... Has anyone found a good solution other than just waiting to see if GM ever decides to make these again? I've got a perfectly good truck that has been sitting idle 2 months now and no end in sight. My truck is a 2012...

www.duramaxforum.com

 

A couple of years ago Ford pulled a similar stunt with the escort. Stopped making parts. A class action lawsuit resulted in Ford having to buy back many of the escorts they had sold. If you are interested in joining a class action lawsuit against GM and Allison, send an email to: b.alsup@live.com with “GM class action lawsuit” in the subject. If we can get enough interested parties, we can approach the same law firm that handled the Ford case. We could force GM and or Allison To produce the parts we need; or to purchase our vehicles back at a percentage of their retail cost.

 

Chevrolet

 

SCAM ALERT: If you are looking for the TCU GM part # 24256861 beware of a large number of scams that have popped up in the last few months promising the part but just taking the money.

This Facebook page--https://www.facebook.com/United-Motor-Parts-105773212300583/--purports to be a legitimate business located in New Jersey. After a lengthy discussion with them about GM Part# 24246861 (a nation wide 'not available' part) I was going to pay the $700 for the part. But I grew suspicious about their payment methodology. They wanted me to pay thru PayPal as 'friend&family' which eliminates the vetting process and consumer protection. Then they wanted to be paid thru Zelle which should ONLY be used with people you know; again no consumer protection. Finally, I looked up the company, got the phone number from the web site and called them. They said the Facebook page is a scam and many people have been cheated. I reported this to Facebook but not sure if it will do any good.
Let the buyer be aware!

 

I am gathering names to initiate a class action lawsuit against GM and Allison Transmission. If you would like to join this action, send an email to b.alsup@live.com with GM Class Action Lawsuit in the subject line.

Thank you for your interest in joining the class action lawsuit against General Motors and Allison Transmission. There may be other defendants involved as well but I will leave that up to the lawyers.

Speaking of lawyers, we do not have a lawyer yet. We are still in the phase of gathering plaintiffs and need many more before any law firm with take the case. I have two children--both are corporate attorneys--who are providing me with guidance but cannot be involved. I believe that once we have at least 100 names, we should reach out to the law firm that won a similar case against Ford just a couple of years ago.

Please spread the word about this action to any source you can. The more names we can gather, the greater chance of getting a reputable law firm with adequate resources to pursue the case. Use your chat groups and social media to spread the word. Talk to your truck-driving friends who may have experienced the same issues.

Thank you in advance for your support.