GM PRODUCTION OPTIONS RPO FY LY DIVISIONAL RPO DESCRIPTION SPOGM RPO DESCRIPTION YC1 82 88 DURANGO EQUIPMENT MID LEVEL W YC1 YC2 76 81 COMFORT CONVENIENCE PACKAGE 2 LUXURY W DECOR PKG YC2 YC2 82 88 TAHOE EQUIPMENT LUXURY W YC2 YC3 76 81 COMFORT CONVENIENCE PKG 3 PERSONAL LUXURY W DECOR PKG YC3 YC3 82 88 SPORT EOUIPMENT PERSONAL LUXURY W YC3 YC5 85 88 DECOR PKG COMFORT CONVENIENCE 1 MID LEVEL W YC5 YC6 76 81 WOODGRAIN CUSTOM ESTATE W WDGRN YC6 YC6 85 88 DECOR PKG COMFORT CONVENIENCE 2 LUXURY W YC6 YC7 87 88 DECOR PKG COMFORT CONV 3 PERSONAL LUXURY W YC7 YD1 82 88 TRAILER PACKAGE HEAVY DUTY W H D TRLR YD1 YE4 76 81 INTERIOR EXTERIOR DELUXE W DLX GRP YE4 YE7 76 84 SPORT PACKAGE GMC SP W GMC SPORT YE7 YE9 76 89 SILVERADO SIERRA CLASSIC W SILVERADO SIERRA YE9 YF3 85 85 SPORT PACKAGE W SPORT PKG YF3 YF7 87 89 RECREATION VEHICLE UPFITTER PACKAGE W YF7 YG1 76 88 MOLDING BODY SIDE UPR LWR WHL OPG PAINTED W YG1 YG2 76 81 WOODGRAIN INSERT NAMEPLATE W WDGRN YG2 YG3 82 89 MOLDING BODY SIDE WHEEL OPENING BRIGHT W YG3 YG5 82 85 SS SPORT MODIFICATION PACKAGE W SS PKG YG5 YG6 76 81 BONANZA PACKAGE A ROYAL SIERRA PACKAGE A W YG6 YG7 76 81 BONANZA PACKAGE B ROYAL SIERRA PACKAGE B W YG7 YG8 76 81 BONANZA PACKAGE C ROYAL SIERRA PACKAGE C W YG8 YG9 84 85 SPECIAL COMPONENTS CELEBRITY EUROSPORT W EUROSPORT ZV8 YH9 76 81 INTERIOR DELUXE W YH9 YJ3 87 88 IDENTIFICATION 4 X 4 W YJ3 YJ6 85 87 DECOR PACKAGE ECONOMY W YJ6 YJ8 76 81 WHEEL CAST ALUMINUM W CAST ALUM WHL YJ8 YK3 76 81 PACKAGE FRT RR SHOCK ABSORBER ELIMPITCH W ELIMI PITCH YK3 YK3 82 83 ABSORBER FRT RR SHOCK ELIMPITCH W ELIMI PITCH YK3 YLO 84 85 SPEAKER HIGH IMPEDANCE W YLO YL1 82 89 UPHOLSTERY LEATHER VINYL W YL1 YL2 82 89 PAINT FIREMIST W FIREMIST YL2 YL3 86 88 PAINT PEARLMIST W PEARLMIST YL3 YL4 82 84 RUBBER STRIPE INSERT WHITE W RUB STR INS YL4 YL5 87 89 COMMERCIAL BODY BUILDER SUPERIOR W YL5 YL7 87 89 COMMERCIAL BODY BUILDER S S COACH W YL7 YL9 87 88 COMMERCIAL BODY BUILDER HESS W YL9 YM5 82 88 STRIPE ACCENT DELETE EXC ACNT STRIPE YM6 76 84 HEADREST JAPAN EXPORT W YM6 EXPORT YP3 76 89 ELDORADO CUSTOM BIARRITZ W BIARRITZ YP3 YP4 76 89 ELEGANTE OPTION W ELEGANTE YP4 v YP5 76 81 PHAETON SPECIAL EDITION W PHAETON YP5 YP5 82 85 ELDORADO TOURING COUPE OPTION W ELDORADO TOURING YP5 YP7 82 87 CIMARRON LIMITED EDITION W LTD EDITION YP7 YP8 84 85 ELDORADO CONVERTIBLE W ELDORADO CONVR YP8 YR1 76 89 SEAT FRT CUSTOM W CUST ST YR1 YR2 76 89 SEAT FRT DELUXE W DLX ST YR2 YR3 82 88 SEAT FRT LUXURY W LUX ST YR3 YS1 76 89 SEAT RR CUSTOM W CUST ST YS1 YS2 76 89 SEAT RR DELUXE W DLX ST YS2 YS3 82 88 SEAT RR LUXURY W LUX ST YS3 YT1 76 89 BUILD UP CUSTOM DOOR AND OTR W CUST DR AND OTR YT1 YT2 76 89 BUILD UP CUSTOM DOOR AND OTR DELUXE W CUST DR AND OTR YT2 YT3 82 83 BUILD UP LUXURY DOOR AND OTR W LUX DR AND OTR YT3 YT6 76 85 TRIM SPECIAL INTERIOR BUILD UP W YT6 YT7 82 83 REMINDER GROUP W YT7 YO2 76 81 SEAT ASM FRT CUSTOM W CUST ST YO2 YO3 76 81 SEAT ASM RR CUSTOM W CUST ST YO3 YO6 82 85 PANEL COWL KICK CARPETED W CPT COWL YO6 YO7 76 85 MOLDING SIDE WINDOW REVEAL PAINTED W PA SI WDO RVL YO7 Y1O 76 81 BUILD UP CUSTOM DOOR OTR W CUST DR QTR Y10 V11 76 81 SEAT ASM SPECIAL FRT W SPL DES ST Y11 Y12 76 81 SEAT ASM SPECIAL RR W SPL DES ST Y12 Y13 76 81 TRIM SPECIAL DOOR W SPL DES TR Y13 Y19 76 81 MOLDING BODY SIDE LWR W BODY SI LWR Y19 Y4O 76 81 COOLING HEAVY DUTY W H D CLG Y40 Y4O 87 87 LESABRE T TYPE W T TYPE Y40 Y41 86 87 CENTURY GRAND SPORT PACKAGE W GRAND SPORT Y41 Y43 76 81 ROAD HAWK PACKAGE W ROAD HAWK Y43 Y43 86 86 LESABRE SESQUICENTENNIAL TEXAS PROMOTION W TEXAS SESO Y43 Y44 82 84 REGAL SPORT COUPE DECOR OPTION W REGAL SPORT COUPE Y44 Y48 76 81 REGAL SR PACKAGE W REGAL SR Y48 Y48 84 89 ELECTRA T TYPE W ELECTRA T TYPE Y48 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17F RPO 28 REV 6 88