SKU: 89518796608

ATS Diesel 601-940-4344 TCM Upgrade, A40 to T87, 4WD, 2009-2010 GM 6.6L Duramax Diesel Performance

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Description

ATS Diesel 601-940-4344 TCM Upgrade, A40 to T87, 4WD, 2009-2010 GM 6.6L Duramax Diesel PerformanceThe A50 TCM that is used to control the Allison 6 speed automatic transmission is the weak link of the Allison transmission. This is due to delicate thin wires inside the TCM that contact one another overtime and short out the entire module. In 2022, Allison sent out a letter (SIL 15 1K2K 22) announcing the discontinuation of support for the A50. This effectively left over 10,000 Duramax owners out of their trucks. Some of the warning signs of a

The A50 TCM that is used to control the Allison 6-speed automatic transmission is the weak link of the Allison transmission. This is due to delicate thin wires inside the TCM that contact one another overtime and short-out the entire module.

In 2022, Allison sent out a letter (SIL 15-1K2K-22) announcing the discontinuation of support for the A50. This effectively left over 10,000 Duramax owners out of their trucks.

Some of the warning signs of a failing TCM are messages including Service Brake System, Stabilitrak Service Required, Range Shift Inhibited, Service Brake System. So we got to work developing a solution utilizing our Translator technology found in the ATS Allison Conversion to help get these trucks back on the road, shifting and holding power even better than before, ASAP!

The ATS T87 Conversion now provides a much more aggressive factory exhaust brake over the factory A50/T14 TCM. We were able to increase the exhaust braking ability in two areas.

First off, we enabled all of the additional tables that the T87 offers that are designed to operate the standard exhaust brake function and the Tow Haul exhaust brake function, these two tables are specifically designed to manage the exhaust brake and provide an aggressive down shift schedule.

Secondly, we are able to command the ECM to use the full exhaust braking function of the ECM, the factory A50/T14 TCM limits this ECM from commanding the full exhaust brake. When the ATS T87-Translator upgrade is installed we enable the ECM to apply the full exhaust braking effort the engine has available.

The combination of the T87, custom TCM calibration and Translator module maximizes the Transmission and Engine/Turbo exhaust brake to provide the most aggressive exhaust braking yet! This function not only provides a safer level of driving but it gives superior engine braking reduction with heavy loads.

The A50 TCM have been used in all GM Duramax/Allison Diesel Trucks produced from 2006 to 2017. ATS is excited to release the new GM Allison T87A upgraded TCM module. The upgraded TCM comes in an assembly including our Translator module that also has our Co-Pilot transmission functions built in.

No core charge required, all components are brand new. GM has released a Band-Aid fix which repairs the problem but does not fix the root cause. This repair requires a trip to the dealership which can then take up to a week or more to make it through the service department, costs nearly as much as our upgrade, and leaves the same components vulnerable to reproducing the same problem with no warranty on the repair.
Features:

  • Works with stock or modified trucks
  • Controls and increases line pressure
  • Direct replacement, no permanent modifications required - plug and play OEM quality harness and module
  • Found on the current 2023 Duramax, the T87a TCM has a much faster processor than the A50 and that equates to better shift quality, faster shifting and overall improved drivability
  • Increases throttle response
  • Fuel economy and MPG improvement
  • Updated shift points to keep the engine within desired RPM range
  • Better torque converter lock-up response
  • Increases life expectancy of the Allison LCT1000 Transmission
  • Brand new, factory sealed TCM
  • Our complete wiring harnesses use state of the art technology and configuration
  • Can be used with any Engine Control Management programming
  • Direct Replacement for AC Delco: TCM 24256861 25978353 15117030

Includes:

  • New T87a TCM that is unlocked and has a custom ATS calibration pre-installed that optimizes the performance of the Allison transmission.
  • New Translator module that has the Co-Pilot transmission pressure function enhancements built in. The Co-Pilot functionality allows the factory Allison transmission to handle higher power levels and much better durability.
  • Mounting Bracket
  • Wiring Harness
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89518796608

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4.7 ★★★★★
Based on 27 reviews
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Bice
San Leandro, US
★★★★★ 5
The Christmas movie no TV stations ever seem to show during the holidays
Since Amazon lumps the reviews for all the various releases of this movie together, I want to be clear that this review is for the single disc, 132 minute blu-ray version with the cover picture of smiling man made of bricks with the word "Brazil" flying out of the top of his head. For those who don't know the history of this movie - there are at least three different versions. It was originally released in Europe as a nearly two and half hour long film. The studio who financed it didn't like that version because it A. was too long, B. was too uncommercial and C. had a dark, depressing ending. The contract they had with Gilliam stipulated that the movie had to be less than 2 hours and 15 minutes, so it could have multiple prime-time showings in theaters. They suggested he cut the ending. Gilliam refused, so the studio took it upon themselves to create the "Love Conquers All" version, which chopped out almost an hour of footage - they only kept the parts that showed the main character Sam in a heroic light, anything that contributed to the Sam/Jill love story and anything that featured Robert DiNero. And, of course, the ending was changed to a happy ending by removing the final scene. Also, to make the plot easier to follow, they used some alternate takes, some deleted footage and hired voice actors to overdub dialog. Unsurprisingly, Gilliam didn't want that version released, so he finally edited the movie down to 2 hours and 12 minutes, kept the dark ending and made a few other minor changes and the studio was contractually obligated to release that version to theaters in the United States. It's this US version that appears on the blu-ray, with absolutely no additional features (not even the Gilliam commentary that's included on most other releases of the film). Annoyingly, they also added advertisements for other movies to the main menu screen. But I'm still happy to have this version, because it's the first time I've seen the "US edit" since originally seeing the film in a theater on the campus of Penn State back in my college days. I can't really write an unbiased review of the movie itself, because from that first viewing I became obsessed with both Brazil and Terry Gilliam's films in general. I bought all his movies on VHS as soon as they came out and eventually replaced them with DVDs. I bought the 3-DVD Criterion "Final Cut" version of Brazil back when it was an expensive new release. I was surprised that it included scenes I'd never seen before - I think it's based mostly on the European version, with some additional tweaks by Gilliam. It also included the "Love Conquers All" version of the movie and a ton of bonus features. Sadly though, it wasn't animorphic, so on my widescreen TV it put black letterboxing bars on all four sides, shrinking the picture down to about 60% of the screen. This blu-ray was exactly what I was looking for. While it's missing a few (non-essential) scenes, it's the version of the movie that I "grew up" with and is presented in full 16X9 animorphic widescreen. It's the best looking version I've seen since originally seeing it in the theater. For example, I never really noticed the makeup on Katherine Hellmond at the beginning of the movie to make her look older (pre-surgery), but it's clearly visible on the blu-ray. I've always felt bad for one actress during the explosion scene in the restaurant because it looks like she really does get hit by some of the flying debris - the blu-ray is maybe a little too clear there, because now I can tell it's just a dressed-up mannequin. As for the movie itself - it's one of those films you'll either love or hate. Its alternate-reality, retro-futuristic look makes it seem nearly as fresh and amazing today as it did when it first came out. And the background plot of a government bureaucracy turning a country into a surveillance state in response to a perceived terrorist threat - I know it was based on things happening in England at the time, but it's like Gilliam had a crystal ball and looked 30 years into the United States' future. The alternating between "reality" and dream sequences and the general Gilliam quirkiness will probably put a lot of people off, but it's what drew me to this movie in the first place. If you become fanatical about the movie like I am, you'll need both this blu-ray and the Criterion release. To fully experience the film you need to see every version (even the Love Conquers All version) because each one includes bits that aren't in any of the others. If you do decide to watch Brazil and find that you like it, give some of Gilliam's more recent movies a try, like The Imaginarium of Dr. Parnassis and The Zero Theorem. Really, if you like odd, out-of-the-mainstream movies that you'll be thinking about for days after you see them, you can't go wrong with pretty much any Terry Gilliam film.
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Reviewed in the United States on January 11, 2016
D
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Doug S.
Port Orchard, US
★★★★★ 5
One Of My Top Ten Movies
It's a Terry Gilliam masterpiece that blends a touch of Monty Python, Twilight Zone, and Broadway! Worth the watch!
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Reviewed in the United States on May 3, 2026
T
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Tripp Moore
Waukegan, US
★★★★★ 5
Visually Brilliant, Darkly Funny, and Still Uncomfortably Relevant
I rented Brazil through Amazon primarily because I’d heard it described as a dystopian sci-fi classic, but I wasn’t fully prepared for just how strange, creative, and visually dense this movie actually is. It feels like George Orwell had a stress dream after getting trapped inside a malfunctioning government office building designed by someone obsessed with ducts and paperwork. The film does an incredible job blending dark comedy, bureaucracy, paranoia, retro-futurism, and outright absurdity into something that somehow still feels coherent. The world-building is fantastic in a very grimy, claustrophobic way where technology exists everywhere but almost none of it works properly. Everything feels intentionally inefficient and overcomplicated, which makes the setting weirdly believable. Jonathan Pryce does a great job playing a character slowly unraveling under the weight of an increasingly surreal system, and Robert De Niro’s appearance is memorable despite limited screen time. The production design is honestly one of the standout elements of the entire film. Nearly every scene has some strange visual detail happening in the background that adds to the oppressive but oddly humorous atmosphere. This definitely is not a fast-paced mainstream sci-fi movie, though. The pacing can feel slow at times, and the tone swings between satire, anxiety, fantasy, and bleakness in ways that probably won’t work for everyone. It’s the kind of movie where you occasionally stop and think, “What exactly am I watching?” while still wanting to keep watching. The Amazon streaming quality itself was good with no playback issues during my rental, and the film benefits from a decent screen because there’s so much visual detail packed into the sets and cinematography. Overall, Brazil is one of those movies that feels increasingly relevant the older it gets. Strange, unsettling, funny, visually inventive, and much more layered than I expected.
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Reviewed in the United States on May 23, 2026
J
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Joel Bradford
Bozeman, US
★★★★★ 4
Beautiful, glorious, and depressing but not without levity
Probably Gilliams most serious film, a story of a dreamer in a dystopian bureaucratic future, plagued by monotony and endless paperwork, our protagonist (played by Jonathan Pryce) isn't sure what he wants in his life, but he knows he wants something different. When the Department of Information Retrieval disappears the wrong person (played by Robert De Niro), our hero goes to reimburse the widow and discovers a woman living in the same building who looks like the woman out of his dreams (played by Kim Greist). Really stellar performances by Pryce, and a gaggle of supporting actors such as Ian Holm, Michael Palin, Kathrine Helmond, and Bob Hoskins. Greists performance is probably the weakest, but she does enough for the role that the critique of it amounts to a nit pick really. While this film is considered a cult classic, I would qualify it even less and say its just a classic, full of symbolism with a increasingly repressive tone throughout balanced by Gilliams puncturing, dark humor.
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Reviewed in the United States on September 29, 2024
M
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Mr. Watkins
Draper, US
★★★★★ 5
Classic Terry Gilliam- Watch It!
One of the best Terry Gilliam movies out there. Made in the 1980's, the cast is superb, and it holds up well 40 years on. WAtch it- it's a trip!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026

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