Pros and cons of using a B-body rear axle assembly???

It sounds like lots of guys use B Body rear axle assemblies for a number of obvious reasons, primarily that they're more plentiful in terms of the stronger units.

It sounds like the only accommodation that has to be made for using them in an A-body is the relocation of the spring perches. Is that right?

The B-Body rear axle is obviously a bit wider than the A-Body unit. To some, this is an improvement because it makes the front and rear track closer to being the same (where stock A-Bodies have a narrower rear track).

Does this impact handling positively or negatively?

Do you think it improves or hurts the aesthetics of an A-Body?

Does this impact tire width options with stock-offset wheels?

In a Duster/Demon/Dart Sport, it's the way to go.

Increased track width usually increases stability. It may actually hurt handling turn in, but I doubt by much

Improves Aesthetics.

I've run the same offset wheels front and rear with the large bolt 73+ fronts and a 68 b-body rear.

With 275-35-18 F/R on 18x9 +35




Same car, same parts with a 225-60-15 F/R on 15x7 with 4.125 backspace:




And finally, the same car, same wheels with a 1974 8 1/4 a-body axle:




We just put a 65 B-body 8 3/4 in my friend's 71 demon which will have my old 15's...and all you need to do is move the spring pads in 1/2" per side and done. Well, that and swap out the left hand thread wheel studs on the driver's side.