Gentlemen and of course Ladies, I ordered a loadshaft bushing kit for my Late 4020,serial number 252,xxx from A&I. The part number is A-Ar54481. It has 3 pieces and I'm at a loss on exactly how it'll go in. There is of course the brass bushing that has a larger diameter opening on 1 side, then an o-ring that looks like it must go in the groove in the bushing and then there is a Teflon seal that really stymies me. The Teflon seal will easily fit inside the rubber o-ring. Am I on the right track thinking it's to go inside. Also which end of the bushing goes inside. All help will be very much appreciated.