GM PRODUCTION OPTIONS T RPO FV LY DIVISIONAL RPO DESCRIPTION RPO DESCRIPTION GB9 75 B7 GEAR RING 7 50 IN W 7 50 DIA RNGRTOBB G92 76 BB AXLETPERFORMANCE RATIO W G92 T 695 85 BB AXLE ECONOMY RATIO W 695 HA3 B2 BB AXLE RR 5 29 RATIO W 5 29R HA3 T HD2 76 81 AKLE RR 2 76 RATIO W 2 76R HC2 HC4 76 BB AXLE RR 4 56 RATIO W 4 55RTHC4 T NCT 76 BB AKLE RR 5 13 RATIO W 5 l3RTHC7 T NCB 76 87 AXLETRR 3 21 RATIO W 3 ZlR HC6 HD1 B2 B4 AXLE RR 5 83 RATIO W 5 83RTHD1 HE3T 76 B4 AKLE RR 3 07 RATIO W 3 07R HE3 HE4 76 Bl AKLE RR 3 40 RATIO W 3 40R HE4 HF7 76 68 AXLE H D RR 4 56 RATIO W H D 4 56R HF7 HFB 75 BB AXLETRR 4 68 RATIO W 4 BBR HFB HK1 B2 86 AXLETRR 2 87 RATI0 W 2 B7R HK1 T HK9 82T B4 AXLE RR 5 B6 RATIO W 5 B6R HK9 HO4 75 B7 AXLE RR 4 11 RATIO W 4 l1R HO4 H22 76 Bl AXLE RR 6 17 RATI0 W 6 17R H22 T I 23 76 61 AKLE RR 5 43 RATIO W 5 43RTH23 T M40 B5 B5 EMISSIONS CONTROL 5 CYL SPRING OPERATED EFE W EMIS CONT H4D HAD B5 B6 IB CYL CAST IRON EXH MANIF W EMIS CONT H4D H5D 65 86 EMISSIONS UJNTROLZ6 CYL VACUUM OPERATED EFE W EMIS CONT H5D T HSD B5 B6 8 CYL STAINLESS STEEL EXH W EMIS CONT H5D JA1 76 BB BRAKE SYSTEM PWR LT DUTY W JA1 JA2 75 BB BRAKE SYSTEM PWR HVY DUTY W JA2 JA3 76 83 BRAKE SYSTEM FWR TWAGONS N JA3 JA3 B4 65 BRAKE SYSTEILPWR EXTRA HVY DUTY N JA3 JA4 76 B1 BRAKE SYSTEM DISC DRUM W JA4 JA5 76 85 BRAKE 5YSTEM PWR HVY DUTY YI JA5 JA6 75 B1 BRAKE SYSTEILMAN EXTRA LT WT W JA6 JA7 B6 B7 HANDLE LEATHER PARK BRK RELEASE W LEA BRK HOLIJATT JAB 82 BB BRAKE SYSTEM PWR MED DUTY W JA8 JBL 76 BB BRAKE SYSTEM MAN DISC DRUM W JBI JB2 76 61 BRAKE SY 5TEM DISC DRUM W JB2 E JB3 76 BB BRAKE SYSTEMTVAC PWR DISC DRUM W JB3 JB5 76 BB BRAKE SYSTEM VAC PWR DISC DRUM W JB5 T T JB5 76 B8 BRAKE SYSTEM VAC PWR DISC DRUM W JB5 JB7 76 B8 BRAKE SYSTEM VAC PWR DISC DRUM W JB7 T JBB 76 BB BRAKE SY5TEM HVD PWR DISC DRUM W JBB T JC4 B2 B7 BRAKETFRT VENTED ROTOR W JC4 JD3 75 B7 BRAKE SYSTEM VAC PWR DISC DRUM W JD3 JD5 76 BB BRAKE SY5TEM FWR DISC N JD5 I T JD6 76 BB BRAKE SYSTEM HYD PWR DISC DRUM W JD6 T JD7 75 BB BRAKE SYSTEM HYD PWR DISC DRUM W JB7 T JE1 76 BB BRAKE SYSTEM EUROPE EXPORT W JEMEXPORT JF9 76 88 BRAKE 5YSTEM HYD PWR 4 YlHL DISC W JF9 T JL1 75 B3 PADSTCUST PED TR T W CUST FADS JL1 T JL2 76 B3 BRAKE SYSTEITLFRT PKR DISC W JL2 JL5 B2 B3 BRAKE FRT SOLID DISC W JL5 T T JL6 75 BB BRAKE S STEM MAN FRT DISC RR DRUM CAST IRON W JL5 JL9 B7 B8 BRAKE SVSTEM PWR FRT A RR DISC ANTILOCK W JL9 JM4 B6 B7 BRAKE SYSTEM PWR ANTILOCK CAST IRON W JM4 JM5 B2 B7 HEAD PNR BRK BOOSTERTTANDEM W P B BOOSTJMS JM7 76 B7 HEAD PWR BRK BOOSTERTSINGLE W P B BOOSTJM7 JMB 76 87 BRAKE SYSTEM PWR ANTILDCK ALUM W JMB 141 B2 B7 BRAKE SVSTEM PNR FRT DISC RR DRUMTCAST IRON W J41 J42 B2 88 BRAKE SYSTEM PYIR ERT DISC RR DRUMTALUM W J42 J5O 76 BB BRAKE YSTEM VAC PWR W J50 T J55 76 BB BRAKE SYSTEN H D PWR VAR I N J55 J65 76 BB BRAKE SVSTEM PWR FRT B RR DISC W J65 JBO 76 B1 BRAKE SYSTEM RR DRUM H D W 190 T KA5 82 B4 VACUUM SYSTEILCAM DRIVEN W KA5 KA5 B2 B4 VACUUM SYSTEM BELT DRIVEN W KA6 KB 82 B4 EXHAUST MANIFOLILSHEET METAL W KBl KB2 B6 B7 HEADSTEHG CYLTCAST IRON W CAST IRON HD KB2 KB3 B2 B4 WATER PUMP ALUMIWUM W KB3 KB7 82 B3 HEAD CA T IRON W KB7 KBB B2 B6 HEAD ALUM N KBB KC4 75 57 COOLER ENG OIL PASS CAR EXC CORVETTE W KC4 EKPORT KC4 75 BB CDOLER ENG OIL TRUCK L CORVETTE YI KC4 T KD1 87 87 COOLER TRANS OILTEXPORT W KDITEXPORTT GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUcK 52A T 93