The seal itself cost less than 7 bucks.
Use a small regular (flathead) screwdriver to pop the old one out.
Just make sure that the new one goes in evenly and is flush with the block.
133whp-126ftlbsTQ Eclipse CD8443,Eclipse PA5422, JBL GTO751EZ, PPI 356cs(Rebranded A/D/S 346cs), JBL p1024, SubThump enclosure, RAAmat BXT, Damplifier Pro
Hatch Nation #140
Caeci caecos ducentes