B-Body rear swap kits are now listed on the Southside Machine Performance website.

[Macguyver]

http://southsidemachineperformance....le-upper-control-arms-and-poly-lower-bushings

 

[motorheadmike]

Interesting.

 

[Andebe]

Would you buy a B-Body rear sway bar or a G-Body?

 

[L67ss]

At that price it'd only be worthwhile if you already had the rear

 

[black_aerocoupe]

Now how wide are the assemblies vs. stock?

How similar are they to the 73-77 A-body rears?

 

[malibudave]

The square B-bodies seem to have the same axle width as the 73-77 A-body cars. The rough axle flange to axle flange width is 61.5" to 61.78" depending on the aftermarket axle lengths.

G-bodies show and axle flange to axle flange of 57.875" to 58" in width.

The square B-body/ 73-77 A-body rear is roughly 1.5" wider than a G-body.

I am not sure if the lower and upper arm pick up points are the same between the A-body and B-body rear.

 

[Macguyver]

Looks like a stock lower control arm would work if you did not want to upgrade to tubular and polyurethane. It's using stock style lower control arms stock G-Body sway bar would be used. 8 inch wheel with 5.5 backspace would be perfect.