searched many threads. I have 90 fin Buick drums, MT backing plates, Walden hubs, 37-41 spindles. Couple of issues...when I mount the backing plate, (and I modified spindle clear offset), set the inside bearing and mount the hub/drum assem. the drum shoe radius hits the backing plate.(pic 1) I know it would have been necessary to trim a bit, but it does not allow the hub to seat on the inside bearing by 7/16" I would have to remove a total of 7/16" between the drum and backing plate surfaces. Seems excessive. Potential issue number 2 is when seating the drum/hub assembly without the backing plate so it seats all the way against the inside bearing, the drum only clears the steering rod, I have cross steering, by 1/16"(pic 2) at the most. seems a little close. I can space the inside bearing a bit but not real excited about that idea. Any suggestions or anyone run into this? Thanks all in advance for any help!!