This is correct info that I can see posted above.
The only thing to add is the bearing size on the 70 T/A and AAR's E-body are also large bearing. I also had one Cuda 6 bbl 4 spd. car with large bearing. I am not sure about Hemi . I Never got to strip one where it was complete and I didn't care to know back then I thought they were all the same. Easy way to tell bearing size without disassembly is the large bearing have a larger squared off hub end. The older up to 72 have a better pin type caliper in my opinion. But the parts are double the cost. Hub ends are tapered. 73 -76 a-body are the better choice to use and easy to find the parts for. Caliper brackets and mounting bolts are the only thing you need to find the rest is available cheap at Auto zone. Spindle are also available new 2 inch drop and standard.