Reply to thread

Message: <blockquote data-quote="b1pig" data-source="post: 1548587" data-attributes="member: 29440">If this was an auto transmission, I'd readily point to the rear diff as the failure point. However... having a manual...Have you drained your transmission and inspected the oil for metal?If "somehow" your manual transmission engages two gears at the same time, the transmission output will lock. That will lock the rear wheels, obviously and more violently than locking brakes up as the shock travels up the driveline. Is it possible that this could have caused the bolts to be loose on your driveshaft? I could entertain that idea, but I'd have no proof of it.Metal in the gear oil of an axle consisting of a little "glitter" I would say is normal and sometimes limited very thin slivers stuck to the magnet. "Chunks" I would not consider normal. I think the weakest things in a rear diff are the c-clip style axles and spider gears. If you pulled the cover and there is nothing obvious in that rear diff, it's time to very closely scrutinize your transmission.I have experienced a locked up manual where two gears selected at the same time. That very thing you describe happened. This was on an old GMC truck with a side-loaded manual. After market shifter had been installed and an improperly installed bolt on one arm caught the other shift arm and shifted the transmission into two gears at one time. Good luck, sir.</blockquote>