I have a world class T5 out of a 1996 S-10 pickup. '93-'96 T5's were all world class but utilized the Ford bolt pattern. Included with the transmission is an adapter that allows these Ford bolt pattern T5's to be bolted to a standard 4-11/16" diameter bore GM bellhousing. There is absolutely no modifications done to the transmission. Also, THE BELLHOUSING IS NOT INCLUDED. This is only for the T5 and the adapter. I make these adapters as well as ones for most GM bellhousings from the 30's. Shoot me a PM or give me a call if you need something different. 330-322-3102, Dave