Swap Manual to Automatic? - Engine and Transmission
Liming · I did the swap on a 1991 Mack with an e-7 Mack 9-speed. The donor truck was a 1996 Mack mr model trash truck with a full mechanical e-7 the transmission was an allison ht-740. All that was needed from the donor was: transmission frame mounts, flexplate, complete transmission assembly, liquid heat exchanger, and the shifter control tower for the
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