What other rear ends will work with my Dart?

64-66 Mustang/Falcon & 75-80 Grenada/Monarch use the same 5 bolt pattern and spring perch spacing as the A-body. Supposedly, 64-65 Comets would work, but I can't verify it. These cars had 8.8 as well as 9" rear gears. Some of the early I-6 cars had four bolt wheels, so don't get giddy until you check it out.

The "brass ring" of these rears is the 77-80 Lincoln Versailles. Not only do they have the right bolt pattern and spring perch spacing, but they also had disk brakes. Production numbers are very small, so good luck finding one.

Most of the early V8 fords had 8" rears, the 9" that came in them stock wasn't great either, it had small axle bearings, 28 spline axles, etc.

The 8" is decent, I knew of someone running one in a valiant and it worked fine, if you're putting out any power run a 3.70 or taller gear, 4.10's and 4.62's have a really small pinion gear and it will snap off the stem if you abuse it.