Do a search. Tons of info here. The older ones are non world cl*** and work with mechanical speedo. The newer world cl*** are electric. You will need your existing bell housing.
Here's a couple more sites ......... http://www.stovebolt.com/techtips/t5******.htm http://www.flatheadv8.org/ernie/ernie-t5.htm
Go to www.inliners.org , click on " tech tips " ( left side of page ) , then to " T5 page " for lots of great info on the swap ! There's also many members , on that forum , that have done the swap and can " educate " you on the proper way to go about the swap, good luck !
Get a copy of the January 2011 issue of Street Rodder. A very good article on s-10 t-5 ****** install. Also includes the shop that sells needed parts (trans adapter) and will modify the length of front bearing retainer shaft Check out hotrodworks.com for parts or the story on street rodder.com Don't get sensitive to some of the guys on the HAMB. We all need to find out info or we wouldn't be here.