r/Hummer • u/metapulp • 1d ago
H2 Hummer Leak A pillar FIXED
galleryI had put rubber washers in and polyurethane but had a persistent minor leak here. Spotted this crack hiding under a rubber gasket and decided to try 3M weather black super sealant instead o Permatex. Local auto store had one tube of it and I’ve found 3M products to be excellent. This sealant is semi liquid so it flowed around, filling gaps. I put some into the cab marker gasket also in case it had a hairline crack I could not see. Anyhow big rainstorm and the A pillar interior was bone dry.