FOR SALE: 1969 CAMARO 12-BOLT POSI-TRACTION REAR END. DATED 4-11-69, CASTING NUMBER 3894860NF. THE RIGHT FRONT SIDE OF THE AXLE TUBING ON THE REAR END READS BR 0417G1. THIS REAR END CAME FACTORY WITH THE 307 POSI-TRACTION. IT CURRENTLY HAS A RICHMOND 456 RING AND PINION IN IT. CALL (785) 650-9043. THANK YOU.