Had the 46 1/2 ton down the I-15 in SoCal at 75, on to then going East 52 3miles of 6% grade in high gear. Got some of those deer in the headlight looks from the 80's trucks lugging up the grade. Works for me. If it goes it has to STOP!!
Stock 56 235/ stock 41 4speed, close drive line, Patrick's 3:55 gears, and Disk brakes.
