What kind of mileage on the Vanagons are we talking about here? I replaced
one once, but it was because the cinder block holding it up, crushed and the
wheel-less Vanagon fell to the asphalt. I was inside taking a p*ss and
getting ready to go under it , at the time. The drum hit the ground and bent
something. Never found out exactly what, but the symptom was pulsating
pedal. I know it was not the drum that was bent as I swapped it out. It was
the stub axel, bearing housing, or bearing. I changed them all.

It might be a better idea to just swap a bearing hub with a rather low
mileage hub. Someone got one for this owner that they can sell??

All hubs are the same,and bearing swap is expensive, and they need to be
pressed in and out at a shop. The bearings themselves are expensive, too.

Might be best to just swap the entire housing.