Automatic to manual conversion.
You'd be cool if you can get a mustang input shaft and tailshaft, so you can cut the hole in the right spot. I agree on the belhousing, it's pretty lame price-wise, though the easiest way in and you can use them for the TKO 600, they also align well historically without those hobosexual adjustable dowel pins. :rolleyes:
Peep this:
Potentially Huge T5 Breakthrough!
Otherwise your best bet would be to have an adapter ring made up at a machine shop.