AXLE IDENTIFICATION CODES CONT D INDICATES POSITRACTION 1983 G CONT D GU3 2 93 RATIO GW9 OPTION 3 08 RATIO GU4 OPTION 3 23 RATIO GU5 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR RE 7 50 RF 7 50 RG 7 50 AG 7 50 AC 7 50 AD 7 50 BG 7 50 BC 7 50 BD 7 50 RW 7 50 RV 7 50 RU 7 50 AW 7 50 AV 7 50 AU 7 50 BW 7 50 BV 7 50 BU 7 50 3 42 RATIO GU6 OPTION 3 73 RATIO GT4 OPTION CODE RING GEAR CODE RING GEAR AE 7 50 AF 7 50 RK 7 50 BF 7 50 BE 7 50 T 3 36 RATIO GV4 OPTION 3 62 RATIO G75 OPTION CODE RING GEAR CODE RING GEAR CQM 6 50 CON 6 50 X 2 39 RATIO F62 OPTION 2 53 RATIO F16 OPTION 2 84 RATIO F17 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR HW CE CL PW 3 06 RATIO FW2 OPTION 3 32 RATIO F25 OPTION 3 65 RATIO GY5 OPTION CODE RING GEAR CODE RING GEAR CODE RING GEAR CT AC BD RD BF 3SB 350 3SC 3SF 19133 REAR AXLE IDENTIFICATION CODES CODE PC PA PB t 1991 GENERAL MOTORS SERVICE PARTS OPERAT10NS CHEVROLET 17W Yj 5 000 sa 6 91