What is the correct caliper location for the rear wheels on a 67 (mono has been swapped for multi leaf) with a 4 disc upgrade? I see pic's where the caliper is located on the front of the rear rotor and other times on the backside of the rear rotor for the rear wheels...

Stagered shockes have a caliper front and rear, 67 if has the both calipers to the front
I think, they are both one way or the other,