On an 01 you use the momentary to the TCM for overdrive lockout, but you still need the BCM for tow/haul mode no matter what year ALLISON your working with.
On an 01 you use the momentary to the TCM for overdrive lockout, but you still need the BCM for tow/haul mode no matter what year ALLISON your working with.
1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.
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