Well I have a 96 XJ classic and when I am on a freeway my revs drop which i think is Overdrive, but it doesnt seem really smart, the smallest little incline i really have to press the gas and the RPMs shoot up, now in cruise control it is just unbearable so I was wondering if it is a torque converter (like the other thread) or just an early "bad/not smart" version of overdrive.