Jamo761

So, it turns out one of the main drive gears is keyed on to its shaft. The key way was flogged out, the key was amost completely destroyed and there were marks on the shaft where the gear had been spining on it. Ended up buying a reconditioned gearbox and had it swapped out. One odd thing, the overhaul shop filled the gear box with Dextron 6 (it's a manual, so normally it would use GL4...). I have heard of this being common practice on late model gear boxes, but nothing as old as 1991. Anybody heard of anyone doing using dextron 6, and if so how did it go?

If it was the syncros, wouldn't the gear leave move into neutral? Gear lever remains in posting and holding it in gear makes no difference....

Nope, drive shafts are stationary....

Hello I have a 1991 turbo diesel pathfinder, 5 spd manual. It has developed a problem where it slips out of gear, but not in the normal way. When it slips out of gear, the gear lever doesn't move (and holding it in place doesn't prevent it from slipping out) and it makes some grinding/crunching noises when it does it. It does it in all gears including reverse, stationary or moving. When it does it stationary it feels like it's catching and trying to drive but then drops out again. When it slips out of gear you can have the clutch all the way out with and it doesn't do anything, it doesn't even make any noise. This problem didn't develop over time, it just started happening, however there has been the odd clunk when changing gear, both during the shift and when the clutch is let out, it almost sounds and feels like excessive backlash in the drive train. Does anybody have any ideas? I'm starting to think it's the transfer case. Is there anyway a clutch failure could cause it? I haven't driven the vehicle since it started to happen except to move it slowly back and forth, which it will do under it's own power. Once it begins slipping I can get the vehicle to move again by ether cycling it into 4wd and back to 2wd. The clutch doesn't seems to be slipping, I can stall the engine by slowly letting the clutch out with the hand break on when it's in a setup that where it isn't slipping. Shifting through the gears when stationary feels normal, pumping the clutch feels normal (not that you get much feel from a hydraulic clutch) Any ideas or help would be greatly appreciated.