1989 REAR AXLE IDENTIFICATION MODEL CODE RATIO SIZE BRAKE MODEL CODE RATIO SIZE BRAKE G1 PSR 3 08 8 50 11 X 2 EXC OBO G1 PSW 3 08 8 50 11 X 2 W G80 G1 PSS 3 42 8 50 11 X 2 EXC G80 G1 PSX 3 42 8 50 11 X 2 W G80 G1 PST 3 73 8 50 11 X 2 EXC G80 G1 PSY 3 73 8 50 11 X 2 W G80 G1 2 PTA 3 08 8 50 11 15 X 2 75 EXC G80 G1 2 PTF 3 08 8 50 11 15 X 2 75 W G80 G1 2 PTB 3 42 8 50 11 15 X 2 75 EXC G80 G1 2 PTG 3 42 8 50 11 15 X 2 75 W G80 G1 2 PTC 3 73 8 50 11 15 X 2 75 EXC G80 G1 PTH 3 73 8 50 11 15 X 2 75 W GB0 G3 HBB 3 73 9 50 13 X 2 5 EXC G80 G3 KCR 3 73 9 50 13 X 2 5 W G80 G3 HBD 4 10 9 50 13 X 2 5 EXC G80 G3 KOS 4 10 9 50 13 X 2 5 W G80 G3 HBG 3 23 9 50 13 X 2 5 EXC GBO G3 KCT 3 23 9 50 13 X 2 5 W G80 G3 HBJ 4 56 9 50 13 X 2 5 EXC G80 G3 KCU 4 56 9 50 13 X 2 5 W G80 G3 BJH 4 10 9 75 13 X 2 5 DANA G3 BKH 4 56 9 75 13 X 2 5 DANA G3 BJJ 4 10 10 50 13 X 3 5 DANA G3 BKJ 4 56 10 50 13 X 3 5 DANA G3 GWG 4 10 9 75 13 X 3 5 DANA G3 GWF 4 56 9 75 13 X 3 5 DANA G3 HNA 3 42 10 50 13 X 3 5 DANA G3 HNB 3 73 10 50 13 X 3 5 DANA G3 HNC 4 10 10 50 13 X 3 5 DANA G3 HNH 3 73 10 50 13 X 3 5 DANA G3 HNJ 4 10 10 50 13 X 3 5 DANA 1990 REAR AXLE IDENTIFICATION MODEL CODE RATIO SIZE BRAKE MODEL CODE RATIO SIZE BRAKE G1 2 PNK 3 08 8 50 11 15 X 2 75 EXC G80 G1 2 PNL 3 08 8 50 11 15 X 2 75 W GB0 G1 2 PNM 3 42 8 50 11 15 X 2 75 EXC G80 G1 2 PNN 3 42 8 50 11 15 X 2 75 W G80 G1 2 PNP 3 73 8 50 11 15 X 2 75 EXC G80 G1 2 PNR 3 73 8 50 11 15 X 2 75 W G80 G3 HBG 3 23 9 50 13 X 2 5 EXC G80 G3 KCT 3 23 9 50 13 X 2 5 W G80 G3 HBJ 4 56 9 50 13 X 2 5 EXC G80 G3 KCU 4 56 9 50 13 X 2 5 W G80 G3 PVR 3 73 9 50 13 X 2 5 EXC G80 G3 PYN 3 73 9 50 13 X 2 5 W G80 G3 PYS 4 10 9 50 13 X 2 5 EXC G80 G3 PYP 4 10 9 50 13 X 2 5 W G80 G3 RAP 3 73 9 50 13 X 2 5 EXC G80 G3 RAR 3 73 9 50 13 X 2 5 W G80 G3 RBS 4 10 9 50 13 X 2 5 EXC G80 G3 RBT 4 10 9 50 13 X 2 5 W G80 G3 RGU 3 42 10 50 13 X 3 5 EXC G80 G3 SJJ 4 10 9 75 13 X 3 5 DANA G3 RGW 3 73 10 50 13 X 3 5 EXC G80 G3 SJK 4 10 9 75 13 X 3 5 DANA G3 SJG 4 56 9 75 13 X 3 5 DANA G3 SJH 4 56 9 75 13 X 3 5 DANA G3 RGG 3 42 10 50 13 X 3 5 DANA G3 RGH 3 73 10 50 13 X 3 5 DANA G3 RGJ 4 10 10 50 13 X 3 5 DANA G3 SKM 4 10 10 50 13 X 3 5 DANA G3 SKN 4 56 10 50 13 X 3 5 DANA G3 SKP 3 73 10 50 13 X 3 5 DANA G3 SKR 4 10 10 50 13 X 3 5 DANA C 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52G i 5 386 5 14 1 91