ultramatic out 3 spd o/d in

Posted by gregc On 2021/9/29 6:33:06

53 clipper ultramatic seems to come out of direct drive with light throttle 40 to 60 mph release gas and engine slows car as if direct drive is holding apply throttle to maintain speed seems ok apply a little throttle and direct drive seems to release (increased rpms)other than that the transmission is good, i can live with it as a sunday show car but this is my everyday driver. i know pressure testing the trans is the only way to see whats going on. now the question 3 speed w O/d i have a complete car to swap the rear gears are 4.1 3 spd and 3.54 ultra can i get away not swapping the rear end and any other problems. thanks