A 1987 REAR AXLE IDENTIFICATION A MODEL CODE RATIO SIZE BRAKE MODEL CODE RATIO SIZE I BRAKE A wall S1 GAC 3 08 A 7 50 9 5 X 2 EXC G80 S1 HAH 3 08 7 50 9 5 X 2 W G80 S1 GAD 3 42 7 50 9 5 X 2 EXC G80 S1 HZJ 3 42 7 50 9 5 X 2 W G80 S1 GAF 3 73 7 50 9 5 X 2 EXC G80 S1 HKZ 3 73 7 50 9 5 x 2 R W G80 S1 GAG 4 11 7 50 9 5 X 2 EXC G80 S1 HZL 4 11 7 50 9 5 X 2 W G80 S1 GAH 3 08 7 50 9 5 X 2 EXC G80 S1 HZM 3 08 7 50 9 5 X 2 W G80 S1 GAJ 3 42 7150 9 5 X 2 EXC G80 S1 HZN 3 42 7 50 9 5 X 2 W G80 S1 GAK 3 73 7 50 9 5 X 2 EXC G80 S1 HZP 3 73 7 50 9 5 X 2 W G80 S1 GAL 4i11 7 50 9 5 X 2 EXC G80 S1 HZR 4 11 7f50 9 5 x 2 W G80 T1 HKA 3 42 7 50 9 5 X 2 EXC G80 T1 HZS 3 42 7 50 9 5 X 2 W G80 T1 I HKB 3 73 7 50 V 9 5 X 2 EXC G80 T1 HZT 3 73 7 50 9 5 X 2 W G80 T1 HKC 4 11 7 50 9 5 X 2 EXC G80 T1 HZU 4 11 7 50 9 5 X 2 W G80 1988 REAR AXLE IDENTIFICATION MODEL CODE RATIO SIZE BRAKE MODEL CODE RATIO SIZE BRAKE S1 GAC 3 08 7 50 9 5 X 2 EXC G80 S1 GAL 4 11 7 50 9 5 X 2 W G80 S1 GAD 3 42 7 50 9 5 x 2 EXC G80 S1 HZH 3 08 7 50 9 5 X 2 W G80 S1 GAF 3 73 7 50 9 5 X 2 EXC G80 S1 HZJ 3 42 7 50 9 5 X 2 W G80 S1 GAG 4 11 7 50 9 5 X 2 EXC G80 S1 HZK 3 73 7 50 9 5 X 2 W GBO S1 GAH 3 08 7 50 9 5 X 2 EXC G80 S1 HZL 4 11 7 50 9 5 X 2 W G80 S1 GAJ 3 42 7 50 9 5 X 2 EXC G80 S1 HZM 3 08 7 50 9 5 X 2 W G80 S1 GAK 3 73 7 50 9 5 X 2 EXC G80 S1 HZN 3 42 7 50 9 5 X 2 W G80 S1 KUG 2 73 7 50 9 5 X 2 EXC G80 S1 HZP 3 73 7 50 9 5 X 2 W G80 S1 HZR 4 11 7 50 9 5 X 2 W G80 S1 KUK 3 08 7 625 9 5 X 2 EXC G80 S1 KUF 2 73 7 50 9 5 X 2 W G80 S1 PMM 3 42 7 625 9 5 X 2 EXC G80 S1 KUJ 3 08 7 625 9 5 X 2 W G80 S1 PML 3 42 7 625 9 5 X 2 W G80 T1 HKA 3 42 7 50 9 5 X 2 EXC G80 T1 HZS 3 42 7 50 9 5 X 2 W G80 Ar T1 HKB 3 73 7 50 9 5 X 2 EXC G80 T1 HZT 3 73 7 50 9 5 X 2 W G80 T1 HKC 4 11 7 50 9 5 X 2 EXC G80 T1 HZU 4 11 7 50 9 5 X 2 W GB0 T1 KUN 3 08 7 625 9 5 X 2 EXC G80 T1 KUP 3 08 7 625 9 5 X 2 W G80 T1 KUR 3 42 7 625 9 5 X 2 EXC G80 T1 KUS 3 42 7 625 9 5 X 2 W G80 1989 REAR AXLE IDENTIFICATION MODEL CODE RATIO SIZE BRAKE MODEL CODE RATIO SIZE BRAKE A S1 GAJ 3 42 7 50 9 5 X 2 EXC G80 s1 GAL 4 11 7 50 9 5 X 2 VW G80 A S1 GAK 3 73 7 50 9 5 X 2 EXC G80 S1 HZP 3 73 7 50 9 5 X 2 W GB0 S1 KUK 3 08 7 625 9 5 X 2 EXC G80 S1 HZR 4 11 7 50 9 5 X 2 W G80 S1 PMM 3 42 7 625 9 5 X 2 EXC G80 S1 PML 3 42 7 625 9 5 X 2 W G80 T1 HKB 3 73 7 50 9 5 X 2 EXC G80 T1 HZU 4 11 7 50 9 5 X 2 W GBO T1 HKC 4 11 7 50 9 5 X 2 EXC G80 T1 KUS 3 42 7 625 9 5 X 2 W G80 T1 KUN 3 08 7 625 9 5 X 2 EXC G80 T1 KUR 3 42 7 625 9 5 X 2 EXC G80 1990 GENERALMOTORS SERVICE PARTS OPERATlONS LT TRUCKg 525 5 386 A s a I REV 10 90