As I understand it, there is a puller to pull front bushing in driveshaft. Then the Okie bushing drives the old rear bushing out of the way and has it's own new seal. I will scan the "Patrick's 3.55 gear installation instructions" In it, the driveshaft is removed from the outer tube and he gives instructions to use a 6' length of 1" pipe with a cap to drive out the old bushings and seal and installation instructions for installing new original style bushings and seal. I will e-mail those instructions to Tim as he has been real good to post stuff like that for me. My ISP does not provide ftp space.