[davetherave]

Bob-

I have Shelby 427 aluminum block engine and a Tremec 3550 tranny.

I would like to confirm that I need to add the spacer between my tranny and bellhousing.

When I measure the distance from inside pilot bearing to bellhousing it comes real close to the distance from my tranny nose to the end of the input shaft- so I just want to confirm that the block spacer is necessary. You gave me one as part of the kit.

Thanks