I bought a conversion gasket set, no instructions were included. I used a blunt screwdriver to tap out the old retainer and picked out the old rope seal, the new neoprene seal is a loose fit inside the retainer (and a good fit around the crankshaft pulley), so I'm guessing I just place the new neoprene seal within the retainer, tap it back into place, peen over the casing again and the neoprene will seal against the timing cover and the retainer on its perpendicular surfaces rather than the outer circumference. Does that sound about right?