big bolt pattern 8 3/4 rear

I've always wondered about the '68 Hemi A-bodies. Didn't some come with 8 3/4's & some with Dana 60's? Wheel bolt patterns front & rear?
they were 4-1/2" bolt pattern.the parts were listed at one time in the original? DC catalog. or maybe in the brake section of the chassis manual. and technically i guess no BP 8-3/4 came "from the factory" in an A-body.