I have a 92 4wd pickup, just recently it has started making some noises on me. What it sounds like is when you let off the clutch youll hear a click or smack type sound. 3 out of 5 times when accelerating and running through the gears youll get a click click click loud and distinctive, however i cant pinpiont where its coming from. originally i thought clutch, but this morning just rolling down a small hill in neutral, i still heard it. anybody had the same problem, any ideas, any help would be appriciated. clutch is not slipping.