After looking at my original axle housing, I realized that...guess what? It's bent. At least the mounting flange is bent, so it can probably be fixed. Regardless, I'll be using the other rear end. It seems to be in better shape with no pitting, so it'll look better after PC. It even has a posi with 3.73 gears!!
Ordered some Moser Axles/seals and a Timken rebuild kit.