The correct axle flange gasket is Felpro # 55350. This is a metal gasket as per original. I installed with a thin film of Permatex Ultra Black on both sides. NAPA carries it.
Autozone sells a gasket made by ROL that will fit but is made out of thick, soft plastic. It shows up in their system as a Felpro 55350, but is actually an ROL plastic gasket.
If you want a metal gasket, go with NAPA. If you have a stubborn leak and want to try something with more thickness and give, you might try the Autozone version.
Lots on gaskets, but it might save a fellow 'bolter lots of time that I spent chasing down the correct ones.
