RPO codes beginning with Y.
Y02 : RING GEAR, 7.50 IN., DANA, (S.P.O.)
Y03 : RING GEAR, 7.62 IN., SAGINAW, (S.P.O.)
Y04 : RING GEAR, 8.50 IN., SAGINAW, (S.P.O.)
Y05 : RING GEAR, 8.50 IN., DANA (S P 0.)
Y06 : RING GEAR, 9.50 IN., SAGINAW, (S.P 0.)
Y07 : RING GEAR, 9.50 IN., DANA (S.P.O )
Y08 : RING GEAR, 9.75 IN., SAGINAW, (S.P.O.)
Y09 : RING GEAR, 9.75 IN., DANA (S.P.O.)
Y10 : RING GEAR, 10.50 IN., SAGINAW , ( S.P.O . )
Y11 : RING GEAR, 10.50 IN., DANA (S.P.O )
Y12 : RING GEAR, 12.0O IN., ROCKWELL (S.P.O.)
Y13 : RING GEAR, 11.50 IN., DANA, (S.P.O.)
Y40 : MERCHANDISED PKG, CADILLAC SPCL PGA TOUR EDITION
Y48 : MERCHANDISED PKG, ELECTRA - T TYPE
Y56 : MERCHANDISED PKG, GRAN TOURING
Y5E : WARRANTY ENGINE ONLY, 150,000 MILES, 5 YEARS
Y61 : PROVISION OPTIONS, END RELEASE SEAT BELT BUCKLES
Y67 : DISPLAY , REMINDER PACKAGE
Y70 : PARTS PKG, HEADLINER - VALUE LEADER
Y72 : PARTS PKG, HEADLINER
Y73 : PARTS PKG, DELUXE HEADLINER
Y79 : PROVISION OPTIONS, LOAD BEARING SEAT ADJ
Y81 : MERCHANDISED PKG, FIREBIRD
Y82 : MERCHANDISED PKG, FORMULA
Y83 : MERCHANDISED PKG, TRANS AM
Y84 : MERCHANDISED PKG, GTA, TRANS AM
Y85 : MERCHANDISED PKG, BONNEVILLE SSE
Y86 : MERCHANDISED PKG, CAMARO RS
Y88 : PACKAGE, STE SPECIAL TOURING EDITION
Y89 : MERCHANDISED PKG, FIREBIRD SE
Y91 : MERCHANDISED PKG, LUXURY EDITION
Y92 : MERCHANDISED PKG, SPECIAL EDITION
Y97 : PACKAGE, GSE SPECIAL EDITION
Y98 : CONTROL, RIDE SYSTEM ELECTRONIC
Y99 : SALES, HANDLING PKG
YA2 : DDOR SIDE RR, SLIDING
YA9 : AXLE, (3400-LBS)
YAA : TIRE REAR, P285/40ZR17 BL R/PE ST TL HW4
YAU : TIRE REAR, P275/40ZR17/N BL R/PE ST TL HW4
YBE : TIRE REAR, P315/35ZR17/N BL R/PE ST TL HWY
YC1 : CONVENIENCE PKG, DECOR LEVEL #1
YC2 : CONVENIENCE PKG, DECOR LEVEL #2
YC3 : CONVENIENCE PKG, DECOR LEVEL #3
YC4 : AXLE (5OOO LB)
YC5 : CONVENIENCE PKG, DECOR LEVEL #5
YC6 : CONVENIENCE PKG, DECOR LEVEL #6
YC7 : CONVENIENCE PKG, DECOR LEVEL #7
YC9 : CONVENIENCE PKG, DECOR LEVEL #9
YD1 : RING GEAR, 7.50 IN., SAGINAW, (S.P.O.)
YE2 : CONVENIENCE PKG, DECOR LEVEL #2, LOW TRIM
YE3 : CONVENIENCE PKG, DECOR LEVEL #3, HIGH TRIM
YE9 : CONVENIENCE PKG, COMFORT & DECOR LEVEL #3
YF3 : CERTIFICATION, EMISSION, FEDERAL
YF5 : CERTIFICATION, EMISSION, CALIFORNIA
YF7 : SALES PACKAGE, RECREATIONAL VEHICLE UPFITTER
YG3 : ORNAMENTATION, BODY SIDE 6 WHL OPENING BRIGHT
YG5 : IDENTIFICATION, SEO USAGE
YG9 : WARRANTY, ENGINE ONLY, 100,000 MILES, 5 YEARS
YGB : IDENTIFICATION, P E P VEHICLE
YHX : TIRE REAR, P205/70R14/N BL R/PE ST TL ALS
YHY : TIRE REAR, P205/70R14/N WS2 R/PE ST TL ALS
YJ3 : DECAL, 4 X 4
YJT : TIRE REAR, P205/75R15/N BL R/PE ST TL OOR
YK3 : ORDER PROTECTION, NO CHANGE
YL1 : TRIM OVERRIDE, UPHOLSTERY, LEATHER/VINYL
YL2 : PAINT SPECIAL, FIREMIST
YL4 : TRIM OVERRIDE, UPHOLSTERY, CLOTH
YL5 : COMMERCIAL BODY, BUILDER SUPERIOR
YL6 : STRIPE COLOR, ACCENT ---- DELETE
YL7 : COMMERCIAL BODY, BUILDER S & S COACH
YL9 : COMMERCIAL BODY, BUILDER HESS
YM5 : STRIPE ACCENT DELETE
YM6 : PROCESSING STOCK SALES
YNA : TIRE REAR, 205/65R15 BW R/PE ST TL HWY 94H
YP1 : MERCHANDISED PKG, CALIFORNIA SEVILLE
YP3 : MERCHANDISED PKG, ELDORADO BIARRITZ
YP4 : MERCHANDISED PKG, SEVILLE ELEGANTE
YP5 : MERCHANDISED PKG, ELDORADO TOURING COUPE
YP6 : MERCHANDISED PKG, SEVILLE TOURING SEDAN
YP8 : MERCHANDISED PKG, CONVERTIBLE
YP9 : MERCHANDISED PKG, SPRING SPECIAL
YR1 : SEAT,FRT CUSTOM
YR2 : SEAT FRT, CUSTOM
YR3 : SEAT FRT LUXURY
YS1 : SEAT,RR CUST
YS2 : REAR SEAT, DELUXE
YT1 : BUILD UP DR & QTR
YT2 : BUILD UP DR & QTR, CUSTOM
YT9 : ???
YUB : TIRE REAR,P195/7DR15/N BL TL R/PE ST AL3
YW9 : SALES PACKAGE, UPS RETROFIT KIT
