Hello Vanagon Types

I wrote a few days ago that my new drums were rubbing on my new backing plates.  They did this constantly, driving straight or turning.  I reported that I ground a 1/16" off the drum rim and problem solved. Well, not quite, they are quiet when driving straight but rub when making a sharp (90 degree or more) turn.  The rubbing is only on the bottom half of the backing plate, maybe just the bottom 1/3.

The brakes are working fine.  The linings are also new and I also installed new wheel bearings at the same time (had a machine shop do this).

I am thinking that the backing plate must be out of round for it to rub just the bottom of the plate. I hesitate to take any more material off the drum to try and fix it.  I am considering just driving it for a while till I get the energy to replace the backing plates.

I wonder why this happens just when turning.  Does anyone have experience with this issue?

Dave B
Boise
85 Westy