does anyone know the rec. tolerances for the bellhousing-i checked it b4 doing anything to it and it was aprx. .030 out-its hard to get a constant reading because the hole is stamped not machined where the trans fits
im using the long dowl pins and weld rings, and trying to get it as close as i can, just wondering allowable offset(tremec 5 speed)

forcd ind
The Tremec and GM spec. on this is .005" There is a lot of info on this site and the Team Camaro site www.camaros.net Do a search there too.