i have a 1996 GMC sub 2500 4x4 w 7.4 and 4l80, towing about 5500 lbs , toyhauler, over 210K but it was probably rebuilt at 150K? before i bought it? fluid looks good for over 210K
i have the black bear traditional tune, MF exhaust ( new a couple weeks ago)
tires are 265/75/16 , 3.73 gear?
i...