‘73 Dart Sport Rear End Upgrade

Is it best to find a B body rear end and have it shortened?

I didn't shorten mine. B body rear with 10" wheels with 5.5 inch backspace. I completely rebuilt the rear with new gears, all new brake hardware, axle bearings, used clutch type sure grip, moved the perches in to equal the 43" on center for the springs, etc.

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