Caliper Help

I have part listings for these......

Disc. Brake Calipers
These are REBUILT calipers. Core charges apply.
A-Body:
BW-TBR4175 1965-72 Right Kelsey Hayes 4 piston Caliper (A-body) WITHOUT pads included $195 ea
BW-TBR4176 1965-72 Left Kelsey Hayes 4 piston Caliper (A-body) WITHOUT pads included $195 ea
BW-TBR4176C 1965-72 Core Charge on a Caliper - refundable with a good core return $ 150 ea