small to big 8 3/4 bolt pattern

Check out Moser, Yukon, etc. BTW: If you can get the rearends for a good price, I would highly suggest picking them all up. BTW: You are going to be looking at drums and backing plates unless you decide to drill your originals out for BBP. You can also drill the original SBP axle flanges for BBP too if you are on a budget.