Guys,
Where does the common shim to 1/8" flexplate to TC lug dimension come from? I do not understand.

Here is the the clearance I have with my PI verter in the stock transmission I just took out. Although I did not measure it the stocker was about the same. It is 5/16" as measured by the smallest drill bit end I could get in there.

Here are photos of the measurements of PI verter seated into the new FLT tranny I am installing. TC lug to bellhousing at about 1 1/16". I've read it should be 7/8".

Stock TC also at abot 1 1/16" seated in the new tranny.

I also measured the wear mark for the the pump engagement on the PI and stock tranny. Both at about 7mm. You can see it visible in this shot.

I also measured most dimensions of stock TC to PI. They are identical best I can tell. Sorry PI, I cursed you guys a few times.


I have my TC bolts and spacers ready to shim this puppy. I just don't know why other than a lot of people telling me to. The General seems okay with a 5/16" clearance. I'm confused.