Originally posted by Bakeoff
The throw out bearing should have nothing to do with it, unless it's getting jammed on the shaft, and like you said, it's only doing it in that gear. Sounds like your synchros are bad, or the linkage is not in there right. If it's pulling just a little, there's enough torque to pop it out of gear, even at low rpms, or constant...
im going to bring it to the shop and get it up on the lift tomorrow.
i know when my syncros are bad, 3rd gear its gone, but it only grinds going into 3rd but downshifting into 3rd it doesnt grind. i have no grinding in second, but, when it does pop out, it will grind and it wont let me in at all, so i have to up the rpm in first and shift into 3rd.