I had to get a transmission adapter to mount my T-5 in my 46 1/2 ton the t=5 wont bolt up to a 46 bellhousing without it, I got mine from transmissionadapters.com the name of the company is called BENDTSENS TRANS ADAPTORS.... call them and they can set u up with everything you need to put the t-5 in. they even set me up with the right clutch disc

http://i629.photobucket.com/albums/uu14/kurtdh519/002-1.jpg