Bellhousing threads are goosed, 5th gear whines and 3rd is a pain to select! Its needing replaced so do i get it rebuilt and where? Would consider a second hand unit but dont want stung off ebay or gumtree by the cowboys lol. Any advice is highly appreciated

 

Do it right do it once.
Think Bara will rebuild if for you and helicoil the threads.

The box is heavy lump to remove ask siscossie he has had many clutch and box problems. And it will end up cheaper in the long run.