I did not think TC's were rebuildable
,, Other than a specialized TC shop. I also thought that when a TC goes, they send metal shards into the tranny destroying the transmission. I was told that a TC going is the leading cause of an AT transmission failure, other than the bands burning up from age and lack of care.. Interesting, I will watch this to see what others know.. Good transmission shops are hard to find, especially 442f. Sorry I cant help on the shop.. Good luck!!