If your 69 still has the factory staggered shocks in the back, you will need 2 right hand calipers and caliper brackets from a 93-97 Z/28. The pass side caliper will go to the back side of the wheel, the driver's side caliper to the front side of the wheel. You will need to redo your hard lines and add flex lines to the calipers. You might need to shim the caliper baskets so that they are centered over the rotors.