rear drum brakes issue

HemiDenny said
needs some help, 8-3/4, rear drums, everything new.

the drums refuse to rotate when I tighten the wheel down. if I loose the lugs slightly, it will rotate, but when I tighten them down, movement / rotation stops. It does it on both sides the same with the wheel tire off (so it is not a tire rub). I have tried......

removing drums and re-adjusting the brakes

new, different drums

small spacer / shim between drum and axle flange

checked the backing plates...zero sign of contact with drum

checked the drum... zero sign of any contact with backing plate or anything else (brake shoes)

I'm stumped and looking for ideas.....all welcome.

Hey Denny, I ran into a similar problem when I replaced the side axles with Mosher's with a 4 1/2 " bolt circle. I was using a 741 housing with a cone style sure grip. Have you set the axle end play using the adjuster? . If you are using green bearings, the adjuster is not needed.What Sure grip are you using? Cone or Clutch style? Thrust button / Thrust spacer may be different depending on which unit you are using. I'm thinking you are locking up the differential by tightening the axles into the thrust button too much and stopping them from moving.