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Originally Posted by 05duramonster  I noticed yesterday that the allison on tow mode just flares each shift to keep the boost up. does this not damage the trans, its like it slips into each gear? I just bought my truck and it has bully power pup on performance right now. my trailer was unloaded 18 ft. car hauler. it just doesnt feel right? any help with this |
I to have the power pup on my 05, At first I had it on the performance mode and the shifting felt funny loaded or unloaded, put it in the tow/econ and the truck shifts great and seams to run better loaded or unloaded. Just my 02