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6cummins
March 25th, 2024, 01:20 PM
I have noticed that Final Drive H0103, Rear Axle Ratio H0122 and Tires Revs Per Miles H0136 do not match between my ECM and TCM. Does anyone know if this is an issue? I recently changed rear end gear ratios and curious if I should change everything in the TCM to match.

Woody35
March 26th, 2024, 06:50 AM
Its an Allison thing. Its how it came from the factory. I wouldnt change it.