1987 REAR AXLE IDENTIFICATION MODEL CODE RATI0 SIZE BRAKE MODEL CODE RATIO SIZE BRAKE nil R1 BR3 2 73 8 50 11 X 2 EXC G80 R1 HXA 2 73 8 50 11 X 2 W G80 R1 CM3 3 08 8 50 11 X 2 EXC G80 R1 HXB 3 08 8 50 11 X 2 W G80 R1 CR3 3 08 8 50 11 15 X 2 75 EXC G80 R1 HXC 3 42 8 50 11 x 2 W G80 R1 BS3 3 08 8 50 11 X 2 EXC G80 R1 HXD 3 73 8 50 11 X 2 W G80 R1 BT3 3 42 8 50 11 X 2 EXC G80 R1 4 HXF 2 73 8 50 11 15 X 2 75 W G80 R1 BU3 3 73 8 50 11 X 2 EXC G80 R1 HXG 3 08 8 50 11 15 X 2 75 W G80 R1 BX3 2 73 8 50 11 15 X 2 75 EXC G80 R1 HXH 3 42 8 50 11 15 x 2 75 W G80 R1 BY3 3 08 8 50 11 15 x 2 75 EXC G80 R1 HXJ 3 73 8 50 11 15 X 2 75 W G80 R1 BZ3 3 42 8 50 11 15 X 2 75 EXC G80 R1 HXL 3 08 8 50 11 x 2 W GSO R1 CA3 3 73 8 50 11 15 x 2 75 EXC G80 R1 HXM 3 73 8 50 11 X 2 W G80 R1 BFK 3 73 8 50 11 X 2 EXC G80 R1 HXN 3 08 8 50 11 15 X 2 75 W G80 R1 BFN 3 73 8 50 11 15 x 2 75 EXC G80 R1 HXP 3 42 8 50 11 15 X 2 75 W G80 R1 HMR 3 42 8 50 11 15 X 2 75 EXC G80 R1 HXR 3 73 8 50 11 15 X 2 75 W G80 R2 GTM 3 23 9 50 11 15 X 2 75 EXC G80 R2 GUY 3 73 10 50 13 X 2 5 W G80 R2 GUB 3 42 9 50 11 15 X 2 75 EXC G80 R2 GUZ 4 10 10 50 13 X 2 5 W G80 R2 GUC 3 73 9 50 11 15 X 2 75 EXC G80 R2 GTX 3 73 10 50 13 X 2 5 W G80 R2 GUD 4 10 9 50 11 15 X 2 75 EXC G80 R2 GTY 4 10 10 50 13 X 2 5 W G80 R2 GUJ 3 23 9 50 13 X 2 5 EXC G80 R2 GTZ 4 56 10 50 13 X 2 5 W G80 R2 GUK 3 42 9 50 13 X 2 5 EXC G80 R2 KCW 3 42 A 9 50 11 15 X 2 75 W G80 R2 GUL 3 73 9 50 13 X 2 5 EXC G80 R2 KCX 3 73 9 50 11 15 X 2 75 W G80 R2 GUM 4 10 9 50 131x 2 5 EXC G80 R2 KCY 4 10 9 50 11 15 X 2 75 W 880 R2 GUN 4 56 9 50 13 X 2 5 EXC G80 R2 KCZ 3 42 9 50 13 X 2 5 W G80 R2 GUW 3 73 10 50 13 X 2 5 EXC G80 R2 KDA 3 73 9 50 13 X 2 5 W G80 R2 GUX 4 10 10 50 13 X 2 5 EXC G80 R2 KDB 4 10 9 50 13 X 2 5 W G80 R2 GTT 3 73 10 50 13 X 2 5 EXC G80 R2 KDC 4 56 9 50 13 X 2 5 W G80 R2 GTU 4 10 10 50 13 X 2 5 EXC G80 R2 GTW 4 56 10 50 13 X 2 5 EXC G80 V R3 GWR 3 73 10 50 13 X 2 5 EXC G80 R3 GWU 3 73 10 50 13 X 2 5 W G80 R3 GWS 4 10 10 50 13 X 2 5 EXC G80 R3 GWW 4 10 10 50 13 X 2 5 W G80 R3 GWT 4 56 10 50 13 X 2 5 EXC G80 R3 GWX 4 56 10 50 13 X 2 5 W G80 R3 GWZ 3 73 10 50 13 X 2 5 EXC G80 R3 GXU 3 73 10 50 13 X 2 5 W G80 R3 GXM 4 10 10 50 13 X 2 5 EXC G80 R3 GXW 4 10 10 50 13 X 2 5 W G80 R3 GXT 4 56 10 50 13 X 2 5 EXC G80 R3 GXX 4 56 10 50 13 X 2 5 W G80 R3 GDP 3 73 10 50 13 X 2 5 DANA R3 GDR 4 10 10 50 13 X 2 5 DANA J R3 GDS 4 56 10 50 13 X 2 5 DANA V1 CX3 3 42 8 50 11 15 X 2 75 EXC G80 V1 HXT 3 08 8 50 11 15 X 2 75 W G80 V1 CY3 3 73 8 50 11 15 X 2 75 EXC G80 V1 HXU 3 42 8 50 11 15 X 2 75 W G80 V1 BB3 2 73 8 50 11 15 X 2 75 EXC G80 V1 HXW 3 73 8 50 11 15 X 2 75 W G80 V1 BC3 3 08 8 50 11 15 X 2 75 EXC G80 V1 HXY 3 08 8 50 11 15 X 2 75 W G80 V1 BD3 3 42 8 50 11 15 X 2 75 EXC G80 V1 HXZ 3 42 8 50 11 15 X 2 75 W G80 V1 BF3 3 73 8 50 11 15 X 2 75 EXC G80 V1 HYA 3 73 8 50 11 15 X 2 75 W G80 V1 BSA 3 08 8 50 11 15 X 2 75 EXC G80 V1 HYB 2 73 8 50 11 15 X 2 75 W G80 V2 GXY 3 23 9 50 11 15 X 2 75 EXC G80 V2 KDD 3 42 9 50 11 15 X 2 75 W G80 V2 GXZ 3 42 9 50 11 15 X 2 75 EXC G80 V2 KDF 3 73 9 50 11 15 X 2 75 W G80 V2 GYM 3 73 9 50 11 15 X 2 75 EXC G80 V2 KDG 4 10 9 50 11 15 X 2 75 W G80 V2 GYW 4 10 9 50 11 15 X 2 75 EXC G80 V2 KDH 3 42 9 50 13 X 2 5 W G80 V2 GZD 3 23 9 50 13 X 2 5 EXC G80 V2 KDJ 3 73 9 50 13 X 2 5 W G80 V2 GZF 3 42 9 50 13 X 2 5 EXC G80 V2 KDK 4 10 9 50 13 X 2 5 W G80 V2 GZG 3 73 9 50 13 X 2 5 EXC G80 V2 GZH 4 10 9 50 13 X 2 5 EXC G80 V3 GZM 3 73 10 50 13 X 2 5 EXC G80 V3 GZR 3 73 10 50 13 X 2 5 W G80 V3 GZN 4 10 10 50 13 X 2 5 EXC G80 V3 GZS 4 10 10 50 13 X 2 5 W GB0 V3 GZP 4 56 10 50 13 X 2 5 EXC G80 V3 GZT 4 56 10 50 13 X 2 5 W G80 V3 GZU 3 73 10 50 13 X 2 5 EXC G80 V3 GZY 3 73 10 50 13 X 2 5 W G80 V3 GZW 4 10 10 50 13 X 2 5 EXC G80 V3 GZZ 4 10 10 50 13 X 2 5 W G80 V3 GZX 4 56 10 50 13 X 2 5 EXC G80 V3 GDN 4 56 10 50 13 X 2 5 W G80 V3 GDP 3 73 10 50 13 X 2 5 DANA V3 GDR 4 10 10 50 13 X 2 5 DANA V3 GDS 4 56 10 50 13 X 2 5 DANA j t 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52R 1 36 REV 1 88