AXLE IDENTIFICATION CODES CONT D INDICATES POSITRACTION 1984 CONT D 3 73 RATIO GT4 OPTION W CODE RING GEAR 6KK 7 50 6JQ 7 50 6JK 7 50 6PO 7 50 6PK 7 50 6KM 7 50 6PM 7 50 6JM 7 50 6EB 7 50 6EC 7 50 6HP 7 50 6HR 7 50 6HS 7 50 1985 3 08 RATIO GU4 OPTION 3 23 RATIO GU5 OPTION 3 27 RATIO GW6 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 8XO 7 75 8JB 7 625 8XC 7 75 8XB 7 75 8JO 7 625 8XP 7 75 8XU 7 75 8PQ 7 625 8XV 7 75 8JP 7 625 8PP 7 625 8KR 7 625 3 42 RATIO GU6 OPTION 3 45 RATIO GM3 OPTION 3 70 RATIO G54 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 8JC 7 625 8XQ 7 75 8XR 7 75 8KA 7 625 8XW 7 75 8XX 7 75 8JD 7 625 8PR 7 625 9PE 7 625 3 73 RATIO GU2 OPTION CODE RING GEAR 8KB 7 625 8JS 7 625 8PS 7 625 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17F 46 REV 6 88