AA3 : WINDOW, TINTED, DEEP TINT, ALL EXCEPT W/S, F.D.,
AK9 : RESTRAINT SYSTEM, RR SEAT, SHLDR, RETR, 3 POINT
AS3 : SEAT, RR, SUBURBAN
AT5 : SEAT RR, CTR, FLDG
AU3 : LOCK CONTROL, SIDE DR, ELEC
A31 : WINDOW, POWER OPERATED, ALL DOORS
A95 : SEAT, FRT BUCKET, HIGH BACK, PASS & DRIVER RECL
BC3 : ORNAMENTATION, INTR, I/P, DELUXE
B30 : COVERING, FLOOR CARPET
B32 : COVERING, FRT FLOOR MATS AUX
B33 : COVERING, REAR FLOOR MATS AUX
B85 : ORNAMENTATION, EXTR MLDG BELT REVEAL
B96 : MOLDING WHL OPENING
CD4 : WIPER SYSTEM WINDSHIELD, PULSE
CMD : PLANT CODE, FLINT MI
C5W : GVW RATING, 7000 LBS
C60 : HVAC SYSTEM, AIR CONDITIONER FRT MAN CONTROLS
C69 : HVAC SYSTEM, RR, AIR CONDITIONER
DK6 : CONSOLE ROOF, INTERIOR
D1G : GEAR, SPEEDO DRIVEN
D45 : MIRROR O/S, SST
E5Z : SPEEDOMETER ADAPTER (DELETE)
E6C
E9Z : SPEEDOMETER KEY (DELETE)
GT4 : AXLE REAR, 3.73 RATIO (DUP WITH 5 X 1)
JB5 : BRAKE, POWER, DISC/DRUM, 6400 LBS
KC4 : COOLING SYSTEM, HEAVY DUTY ENGINE OIL
K34 : CRUISE CONTROL, AUT0MATIC, ELECTRONIC
K68 : GENERATOR,105 AMP
L05 : ENGINE, GAS, B CYL, 5.7L, 1 TBI, V8
MD8 - 700r4 transmission 4 speed auto
MX0 - auto overdrive provisions
NB2 : EMISSION SYSTEM , CALIFORNIA , TIER O
NE2 - 40 gallon tank
NK3 - sport steering wheel
N33 - tilt wheel
N90 : WHEEL, 15 X 7,ALUMINUM CAST, 4.75 INCH BOLT CIRCLE
SLM - Stock order sale
TR9 - Lamp group
TT4 - Halogen headlamps -4
T63 - headlamps on alarm
UA1 - High capacity battery
UM6 - AM/FM radio, seek/scan/ auto-rev cassette
UM6 - AM/FM radio, seek/scan/ auto-rev cassette
UN9 - radio equipment - suppression
UP8 - AM/FM radio provisions
U73 - fixed radio antenna
VE5 - frt/rr impact bumper chrome
VG3 - frt bumper impact strip
VG5 - gas tank protector
V02 - HD radiator w/ oil cooler
V22 - chrome grille
V73 - vehicle statement usa/canada
XHA TIRE SIZE?!?!?! >>>>>>>>>>>>>>>>
X6Z - auto locking hub
YA7
YD3 - base axle
YD5 - base frt spring
YD6 - base rr spring
YE9 - comfort/conv package #3
YF5 : CERTIFICATION, EMISSION, CALIFORNIA
YG3 - Deluxe package, bright marker/taillight trim
YHA TIRE SIZE !?!?!? >>>>>>>>>>>>>>>>>>>
ZHA TIRE SIZE !?!?!? >>>>>>>>>>>>>>>>>>>
ZQ2 - driver convenience sales package
ZW9- base body equipment
ZY1 : COLOR COMBINATION, SOLID
Z75
24D : TRIM COMBINATION, CLOTH, DK BLUE (D) (91)
241 : SECONDARY COLOR, EXTERIOR, BLUE METALLIC (93-SAT)
27U : PRIMARY COLOR, EXTERIOR, LT FRENCH BLUE MET (91)
I got it started... Will edit and update later, or hoping
@RetroC10Sport can get his list.

Can you populate a RPO list with just a VIN # on an 85 Retro???