What I have is a 2010 Grand Cherokee that I swapped in a 6.4 and a 4WD 8HP70. I had a tune for the engine made using the original PCM. The 8HP is being run by a controlled from sound german engineering. Its a 4WD transmission but I had to use a TCM from a 2WD out of a 2018 Challenger SRT. The transmission has been acting funny and I am sure it needs a major tune adjustment. Any recommendations on a tuner than can make adjustments ? May also need a adjustment or new tune for the engine.... original guy went out of business right after he sent me the first version of his tune.
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