Hate to do it

66/67 B body 8 3/4.

Can be had complete with 2.94 open and brakes for $150.

Not really necessary to move perches 3/4 of an inch (let the fire storm begin).

Might need to run skinnier tires or play with offset if you want "mags".

Makes the rear track the same as the front track on a disk brake car.

No mods needed in a Duster, A little tighter in a "23" body.

Another option is an M body 8 1/4.