I have been having an issue with trans mount. Typically the bolts get pulled out of the trans with the most severe being a broken tailshaft. Threaded inserts haven't helpe.
I thought up an idea and was wondering what you all think...see attached pictured.
Basically, wrap a shackle around the tailshaft and mount it to the trans crossmember using springs (maybe valve springs).
Add a rubber cushion betweeen the shackle and trans to prevent chafing, and udjust the preload with the bolt nuts on the bottom.
This is just a quick 5 minute sketch, so no scale has been utilized.