ATS TCM Upgrade, A50 To T87 4-Wheel Drive For 2011-2014 GM 6.6L Duramax exhaust mufflers & tips We have more experience with

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ATS TCM Upgrade, A50 To T87 4-Wheel Drive For 2011-2014 GM 6.6L Duramax exhaust mufflers & tips We have more experience withThe A50 and T14 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 and T14 TCMs. This effectively left over 10,000 Duramax owners out of their trucks. Some of the