a body bushing dimensions

well...as far as length, they need to be at least 2 1/2"....that's the spring width....i made mine 3", with a steel sleeve just a tad longer so that when you clamp down the front bolt, it doesn't bind the bushing...i posted pics of them awhile back...i'll see if i can find the post

here it is:
http://www.forabodiesonly.com/mopar/showthread.php?t=1998&highlight=nylon