swapping 8.75 for 7.25, brake drum problem

sireland67 said
When I built my 8.75 I did the following.
Bought the large bolt pattern axles from Dr. Diff.
I used the backing plates, and the drums that came off the large bolt pattern 7 1/4 that came out of my duster.
It bolts right on.

I did the same thing, worked great.