GM PRODUCTION OPTIONS RPO FY LY DIVISIONAL RPO DESCRIPTION WDDGM RPO DESCRIPTION HF7 76 B7 AXLE H D RR 4 56 RATIO W H D 4 56R HF7 HFB 76 B7 AXLE RR 4 88 RATIO W 4 BBR HFB HK1 B2 B6 AXLE RR 2 B7 RATIO W 2 B7R HK1 HK9 B2 B4 AXLE RR 5 B6 RATIO W 5 B6R HK9 HD4 76 87 AXLE RR 4 11 RATIO W 4 11R HO4 H22 76 B1 AXLE RR 6 I7 RATIO W 6 I7R H22 H23 76 B1 AXLE RR 5 43 RATIO W 5 43R H23 H4D B5 B5 EMISSIONS CDNTROLZ6 CYL SPRING OPERATED EFE W EMIS CONT H4D H4D 85 B6 8 CYL CAST IRON EXH MANIF W EMIS CONT H4D H5D 85 B6 EMISSIONS CONTROL 6 CYL VACUUM OPERATED EFE W EMIS CONT H5D HSD 85 B6 B CYL STAINLESS STEEL EXH W EMIS CONT H5D JA1 76 B7 BRAKE SY TEM PWR LT DUTY W JA1 JA2 76 B7 BRAKE 5YSTEM PWR HVY DUTY W JA2 JA3 76 B3 BRAKE SYSTEMPWR IWAGONS W JA3 JA3 B4 B6 BRAKE SYSTEM PWR EXTRA HVY DUTY W JA3 JA4 76 B1 BRAKE SYSTEM DISC DRUM W JA4 JA5 76 85 BRAKE SYSTEM PWR HVY DUTY W JA5 JA6 76 81 BRAKE SYSTEM MAN EXTRA LT WT W JA6 JA7 86 B7 HANDLE LEATHER PARK BRK RELEASE W LEA BRK HDL JA7 JAB B2 B7 BRAKE SYSTEM PWR MED DUTY W JAB JBI 76 87 BRAKE SYSTEM MAN DISC DRUM W JB1 JB2 76 B1 BRAKE SYSTEM DISC DRUM W JB2 JB3 76 B7 BRAKE SY5TEM VAC PWR DISC DRUM W JB3 JB5 76 87 BRAKE SYSTEM VAC PWR DISC DRUM W JB5 JB6 76 B7 BRAKE SYSTEM VAC PWR DISC DRUM W JB6 JB7 76 B7 BRAKE SYSTEM VAC PWR DISC DRUM W JB7 JBB 76 B7 BRAKE SYSTEM HYD PWR DISC DRUM W JBB JC4 B2 B7 BRAKE FRT VENTE0 ROTOR W JC4 JD3 76 B7 BRAKE SYSTEM VAC PWR DISC DRUM W JD3 JD5 76 B7 BRAKE SYSTEM PWR DISC W JD5 JD6 76 B7 BRAKE SYSTEM HYD PWR DISC DRUM W JD6 ID7 76 B7 BRAKE SYSTEM HYD PWR DISC DRUM W JD7 JE1 76 B7 BRAKE SYSTEMEUROPEIEXPORT W JEIIEXPORT JF9 76 B7 BRAKE SYSTEM HYD PWR 4 WHL DISC W JF9 JL1 76 B3 PADS CUST PED TR W CUST PADS JI 1 JL2 76 83 BRAKE SYSTEM FRT PWR DISC W JL2 JL5 B2 B3 BRAKE FRT SOLID DISC W JL5 JL6 76 88 BRAKE SYSTEM MAN FRT DISC RR DRUM CAST IRON W JL6 JL9 67 67 BRAKE SYSTEM PWR FRT G RR DISC ANTILOCK W JL9 JM4 B6 87 BRAKE SYSTEM PWR ANTILOCK CAST IRON W JM4 JM5 62 87 HEAD PWR BRK BOOSTERITANDEM W P B BOOSIJM5 JM7 76 87 HEAD PWR BRK BOOSTERISINGLE W P B BOOSIJM7 JMB 76 B7 BRAKE SYSTEM PWR ANTILOCK ALUM W JMS J41 62 B7 BRAKE SYSTEM PWR FRT DISC RR DRUMICAST IRON W J41 J42 B2 B7 BRAKE SYSTEM PWR FRT 0ISC RR DRUMIALUM W J42 J50 76 88 BRAKE SYSTEM VAC PWR W J5O J55 76 BB BRAKE SYSTEM H D PWR VAR 1 W J55 J65 76 87 BRAKE SYSTEM PWR FRT RR DISC W J65 JSD 76 B1 BRAKE SYSTEM RR DRUM H D W J90 KA5 B2 B4 VACUUM SYST M CAM DRIVEN W KA5 KA6 B2 B4 VACUUM SYST M BELT DRIVEN W KA6 KB1 82 B4 EXHAUST MANIFOLD SHEET METAL W KB1 KB2 B6 B7 HEADS ENG CYLICAST IRON W CAST IRON HD KB2 KB3 B2 B4 WATER PUMRALUMINUM W KB3 KB7 B2 B3 rIEAD CAST IRON W KB7 KBB B2 B6 rIEAO ALUM W KBB KC4 76 B7 COOLER ENG OIL PASS CAR EXC CORVETTE W KC4 EXPORTI KC4 76 B8 COOLER ENG OIL TRUCK L CORVETTE W KC4 KD1 B7 B7 COOLEFLTRANS OILIEXPOFIT W KD1 EXPORT KD2 B2 84 PUMP FUEL INJECTION STANADYNE W KD2 STANADYNE KD3 B2 64 PUMP FUEL INJECTION C A V W KD3 C A V KE1 76 B1 ELECTRONIC SPARK SELECTION W E S S KE1 KF3 76 61 ELECTRONIC FUEL INJECTION W E F I KF3 KGO B7 87 GENERATOR 74 AMP W 74 AMP KGO KJ5 76 81 MOTOR STARTING JAPANESE EXPORT W KJ5 EXPORT KJ5 B2 85 MOTOR STARTINGIMITSUBISHI W KJ5 KL7 B2 B7 LP GAS PREPARATION W KLHCANADIAN KM5 76 61 GLOW SYSTEM SLOW START W SLOW GLOWIKMS KM6 76 61 GLOW 5YSTEM FA5T START W7 FAST GLOW KM6 KM7 76 83 MANIFOLD INT CAST IRON W KM7 KM9 76 B7 MANIFOLD INTIALUM W KM9 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION REV 10 86 31