Just so I'm 100% clear on an 8 3/4 swap!!!

I just bought a "A-body 8 3/4 rear"....need the 8 3/4 shock plates too. Bolted right in to my 65 "S" spec 5 leafs. The gas tank was like 1/4 inch from the dome though, just a "check your ****" once you get it in. Drive shaft needs to be shortened too.