Originally Posted by
Mxr33
I think I figuered it out. The brake shaft gear that contacts gear for slipper clutch was worn down just enough it would allow everything to spin with truck on stand. Under load would slip. Installed new gear and was able to run four tanks through it at practice with no issues.
Funny you posted this....
I have had the same thing happen to me....
I have yet to pull mine apart again... but last I worked on it, I lost a diff ball, and after replacing it, the truck is doing the same thing as yours... spins, like the slipper is slipping excessive...
rebuilding shocks now, with new sharfts in rear, will tear down the diff and see whats wrong...hope it isn't what is wrong with yours... that means I have to order a part......LOL