AXLE IDENTIFICATION CODES INDICATES POSITRACTION 1982 GU3 2 41 RATIO GU1 OPTION 2 73 RATIO GU2 OPTION 2 93 RATIO GW9 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR GF 7 50 GB 7 50 KF 7 50 JW 7 50 JX 7 50 JE 7 50 PX 7 50 JJ 7 50 PE 7 50 PW 7 50 PE 7 50 3 08 RATIO GU4 OPTION 3 23 RATIO GU5 OPTION 3 42 RATIO GUG OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR KG 7 50 KH 7 50 KJ 7 50 JY 7 50 JZ 7 50 JR 7 50 JG 7 50 JH 7 50 PY 7 50 PZ 7 50 PG 7 50 PH 7 50 1983 GU3 2 73 RATIO GU2 OPTION 2 93 RATIO GW9 OPTION 3 08 RATIO GU4 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR PW 7 50 KF 7 50 KG 7 50 JX 7 50 JY 7 50 JF 7 50 JG 7 50 PX 7 50 PY 7 50 3 23 RATIO GU5 OPTION 3 42 RATIO GUG OPTION 3 73 RATIO GT4 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR KH 7 50 JR 7 50 JQ 7 50 JZ 7 50 JJ 7 50 JK 7 50 JH 7 50 PQ 7 50 PZ 7 50 1984 3 08 RATIO GU4 OPTION 3 23 RATIO GU5 OPTION 3 42 RATIO GT4 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR 6PZ 7 50 GJZ 7 50 4PR 7 50 GES 7 50 GJH 7 50 GJJ 7 50 GET 7 50 GEO 7 50 GEP 7 50 GEV 7 50 GER 7 50 6HO 7 50 GHJ 7 50 GEV 7 50 GPJ 7 50 GEU 7 50 GEW 7 50 6HK 7 50 GEX 7 50 GHG 7 50 GHF 7 50 GHH 7 50 GEX 7 50 GHL 7 50 GHM 7 50 GHN 7 50 Y 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17F REV 6 88 45