Dr. Diff 1/2" offset hangers on early A-body?

did it make a difference in tire clearance? I looked under there years ago and decided it was minimal gains.
I gained the claimed 1/2" spring clearance for each side on my 64 Barracuda. I narrowed a C-body axle housing to be 1" narrower than the factory A-body housing and that centers the wheel in the wheel opening. I have 245/60R15 tires on 8" zero offset wheels. The result is 1" clearance to the outside of the springs and approximately 3/4" to the inside of the inner wheelhouse. My car is slightly raised so it leaves plenty of room. Might get pretty snug on a lowered car.

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