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Any updates on your tune? Have you got into the trans tune yet?

Sorry for the late question but what year ECM are you using. I looked up on Mitchell for 2017 and there are two choices Vin S and V Y.

Hello, I'm working on a standalone l86/8 speed swap. I have a 2017 3 wire fuel pressure sensor engine (with 2 wire injector harness) and matching 2017 ecm but I was given a 4 wire main harness by...

Ok gotcha, I was thinking the tire height and gear ratio changes where made on the ecm side but yeah that will all be different on the swap.

Would the T87A necessarily have to be unlocked if this is a very stock configuration? This isn't a hot rod and I'm not looking for anything different than stock truck calibration just in my 75 GMC.

I just oredered a E92/T87 combo tuned for a 2017. As I understand it a T87 will operate a 2017 8l90 just fine.

as an a e92A and T87A or both from the exact vehicle?

Hello, I purchased a 2017 6.2/8l90 combo and it turns out the E92 ecm that came with it is for a 2016 5.3/8l90 combo. The T87A tcm came attached to the trans and I think it's correct for the trans....