AXLE IDENTIFICATION CODES CONT D INDIOATES POSITRACTION 1983 B I 2 29 RATIO GH2 OPTION 2 39 RATIO GM7 OPTION 2 41 RATIO GU1 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR GC 7 50 GH 7 50 GF 7 50 HC 7 50 HH 7 50 HF 7 50 FA 7 50 VC 8 75 ZC 8 75 YC 8 75 YL 8 75 UF 8 75 VT 8 75 WT 8 75 ZT 8 75 YT 8 75 Y0 8 75 UY 8 75 TT 8 75 ZN 8 50 DU 8 50 GU3 2 55 RATIO GM8 OPTION 2 73 RATIO GU2 OPTION 2 93 RATIO GW9 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR GA 7 50 FC 7 50 GG 7 50 HA 7 50 GB 7 50 HG 7 50 YD 8 75 HB 7 50 FB 7 50 YM 8 75 ZE 8 75 VF 8 75 YU 8 75 YE 8 75 YG 8 75 YR 8 75 YN 8 75 VX 8 75 TU 8 75 WW 8 75 WX 8 75 ZP 8 50 ZW 8 75 YX 8 75 YA 8 50 YW 8 75 YP 8 75 YF 8 50 YS 8 75 TX 8 75 W YN 8 50 TW 8 75 ZR 8 50 YT 8 50 ZQ 8 50 YC 8 50 Z0 8 50 Y0 8 50 ZU 8 50 YK 8 50 YB 8 50 YX 8 75 YG 8 50 DW 8 50 ZY 8 50 DS 8 50 YP 8 50 YU 8 50 DV 8 50 1 1991 GENERAL MOTORS SERVICE PARTS 0PERAT 0NS OLDSMOBILE 32W 5 000 56 6 91