Originally Posted by Nemo from what he said, once his TC locked in 5th he started to gain on me. . he has no idea what he is talking about or how an allison works. When you go WOT from a stop, the converter locks in 2nd gear and stays locked from then on up
2005 Silverado, CC/SB, 4x4, LT, LILLY/Allison12.9s @ 108 mph many thanks to Ross and Paul
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