1987 AXLE IDENTIFICATION CODES CONT D INDICATES POSITRACTION B 2 56 RATIO GM8 OPTION 2 73 RATIO GU2 OPTION 3 42 RATIO GU6 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 8NP 8 50 8YB 8 50 4ZC 8 50 5GA 7 50 8YP 8 50 4ZM 8 50 BGM 7 50 8NV 8 50 BGS 7 50 8GN 7 50 5GB 7 50 8GT 7 50 3 08 RATIO GU4 OPTION 3 23 RATIO GU5 OPTION CODE RING GEAR CODE RING GEAR 8LG 8 50 8LH 8 50 8NX 8 50 8NY 8 50 8ZE 8 50 8YE 8 50 8ZV 8 50 8YS 8 50 8DG 8 50 8DX 8 50 8YD 8 50 8YR 8 50 2YL 8 50 2YY 8 50 G 2 29 RATIO GH2 OPTION 2 41 RATIO GU1 OPTION 2 56 RATIO GM8 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 2AH 7 50 2AJ 7 50 2AY 7 50 2BH 7 50 2BJ 7 50 2BY 7 50 2AZ 7 50 2AA 7 50 2BZ 7 50 2BA 7 50 2 73 RATIO GU2 OPTION 3 08 RATIO GU4 OPTION 3 73 RATIO GT4 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 2AB 7 50 2AC 7 50 2TF 7 625 2BB 7 50 2AV 7 50 2TH 7 625 2AX 7 50 2BC 7 50 2TG 8 50 2BX 7 50 2BV 7 50 2TR 8 50 3TG 8 50 3TR 8 50 2 14 RATIO G72 OPTION 3 23 RATIO GU5 OPTION 3 42 RATIO GU6 CODE RING GEAR CODE RING GEAR CODE RING GEAR 2AK 7 50 2AD 7 50 2TJ 8 50 2BK 7 50 2BD 7 50 3TJ 8 50 2TP 8 50 3TP 8 50 T 3 36 RATIO GV4 OPTION 3 62 RATIO G75 OPTION CODE RING GEAR CODE RING GEAR 5TA 6 50 5TB 6 50 5TC 6 50 5TD 6 50 1990 GENERAL MOTORS SERVICE PARTS 0PERATIONS PONTIAC 22W j 5 000 s 8 REV 6 90