Hey bee1971, what was outcome with your seal and retainer?

I was doing same, and bought Mancini retainer kit with the 4 o-ring side seals. Dry fitting it I checked the gap between retainer o-rings and block. The o-rings dont even touch the block. .003" feeler gauge slides in between without any drag. The o-ring grooves seem too deep to me.

I think I will try directions as per post above - to fill the side seal with RTV. I don't know if I can fill that small o-ring groove all way toward cam from the bottom.

Also, Doing this with engine in the car,I don't see anyway to RTV the retainer once it is assembled. Maybe need to slide the trans back??