Rear axle change

I used 89 Dakota backing plates for my 10 x 2 1/2 inch brakes,can also get the drums which will be LBP.Good Luck.

Oh I had to break off a bracket at the bottom of the plate,then they work fine.

Oh ok cool so do I basically get a whole rear brake set up for an 89 Dakota?
Is the hub center opening on the bbp drums larger than the sbp?