ATS TCM Upgrade, A40 to T87, 2WD, 2009-2010 GM 6.6L Duramax ATS Diesel Performance custom tuning 5-2025 Dodge/Ram 2500/3500/4500/5500 with 5

5-2025 Dodge/Ram 2500/3500/4500/5500 with 5

Works with factory air ride equipped trucks only

aluminum quick connect coupler

the DiabloSport inTune i3 Platinum + Unlocked PCM Kit is the ultimate performance upgrade

and trail-ready performance

ATS TCM Upgrade, A40 to T87, 2WD, 2009-2010 GM 6.6L Duramax ATS Diesel Performance custom tuning 5-2025 Dodge/Ram 2500/3500/4500/5500 with 5The 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