UPDATE:

today i took off the differential cover and insspected it.

first thing i noticed was a huge clump of metal shaving collecting on the magnet

rotated the gears some and we isolated the problem

a tooth on the spider gear snapped off when i took the turn, flung around and scratched the ring and pinion gears up to where they will make lots of noise if ran.

sooo

im gonna need a new posi unit.........any suggestions on a good one that will hold to some big power?

and i need a new set of ring and pinion: more than likely going with 4.10s or 3.73s

let me know some suggestions

anyone with a m6 fbody with 3.73s or 4.10s wanna let me get a feel for 'em