CCP a-body disc brake conversion...any good??

That’s true, the spindles, calipers and calipers mounts are the same either way. But the brake lines included in that kit will only be the right length for one of those options. Front mounting the calipers vs rear mounting then calipers requires different length brake lines.

That’s why when you order a disk brake kit from DoctorDiff you have to specify where you’re mounting the calipers.

DoctorDiff, I’ll have to look into that...was it prices similar?