Spring Relocation Dimensions

I guess it depends on which type (size) of bushing you plan to use. I just measured the rear eye on my stock springs and it was very close to 7/8. I measured the stock leaf spring rubber bushing and it was the same. I do not have SS springs so maybe the SS springs come with larger OD bushings.
Otherwise, in a stock A body Mopar, the upper and lower REAR leaf spring bushings are the same 7/8" OD.

Treblig