duramax+allison

#1
can anyone tell me where i can find info to reprogram my allison- i want to have it shift earlier under no load- for better mileage-
sort of a reverse tow/houl mode-thanks-hh
 
#2
duramax+allison

I sell various reprogrammers for vehicles, but I do not know of anything aftermarket that changes the Allison. When I reprogram the Duramax, it does not effect the trans. You might want to check your dealer and see if it is even possible.
 
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