candeapple75

hey guys, just put a strange rear in my 99 t/a.. i have an auto trans, and i put 3.73 gears. I feel a huge difference, but when i get on it, and its redline, it just bobbs off the limiter. never used to do that. is it b/c i need a tune? also the speedo is off, but that i know i have to re-calibrate.. ne1 can help me that would be sweet!.

thanks in advance guys..

xXxSilveradoxXx

iTrader: (5)

If you change the gears you need to modify the tune.