Mopar/Ford KH Calipers Interchangeable?

Has anyone tried using Raybestos FRC4048 & FRC4047 in lieu of the seemingly unobtainable FRC4176 & FRC4175?

The 4048/4047 are mustang part numbers and the stock photos look identical. The specs look nearly identical, with the only difference being a 1.635 vs 1.64 bore size.

What sayeth ye, oh my children?

More Information for RAYBESTOS FRC4176

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