1973 spindles-Disc brake-BBP

Dusteriffic said

They look like FMJ spindles.

Are you positive they were removed from an A-body or did someone just say they would work?

Click to expand...

I also agree.
Those pictured are F M J Spindles.
The "shape" of them in the area where they bolt to the spindle are different from the A body spindles.
Measure them accurately and you will find them to be "taller" than A body spindles.