Just got done aligning my bellhousing and I can tell you that it can be a real pita, but its done right and I know I won't have to wonder about it later. The tolerance is .005". If you still have the directions for the centerforce - they show how to measure and give the tolerances. It also tells you to take a second measurement straight down towards the face of the bellhousing. The tolerance there is .002 . I had no problem punching out the old pins from the back - they come right out. Getting the new ones in and set properly is a different story. If you need offset pins I have a set of .014 offset you can have if thats what you need. I guessed wrong on the first set and had to buy .007 offsets.
Doug
Doug
