Found these out today
AM7:
SEAT RR FOLDING
AU3:
LOCK CONTROL SIDE DR, ELEC
A20:
WINDOW RR QTR, VENT SWING OUT
A31:
WINDOW POWER OPERATED, ALL DOORS
A95:
SEAT FRT BKT, HIGH BACK, DRIVER & PASS RECL
B32:
COVERING FRT FLOOR MATS, AUX
B33:
COVERING REAR FLOOR MATS, AUX
B85:
MOLDING B/S EXTERIOR, BRIGHT
B96:
MOLDING WHL OPENING
C60:
HVAC SYSTEM AIR CONDITIONER FRT, MAN CONTROLS
D48:
MIRROR O/S LH & RH, REMOTE CONTROL, ELECTRIC, COLOR.
D55:
CONSOLE FRT COMPT, FLOOR
E63:
BODY EQUIPMENT FLEETSIDE PICK-UP BOX
FE9:
CERTIFICATION EMISSION, FEDERAL
GU6:
AXLE REAR 3.42 RATIO
JB5:
BRAKE POWER, DISC/DRUM, 6,400 LBS
K34:
CRUISE CONTROL AUTOMATIC, ELECTRONIC
K60:
GENERATOR 100 AMP
L05:
ENGINE GAS, 8 CYL, 5.7L, 1TBI, V8
M30:
TRANSMISSION AUTO 4 SPD, HMD, 4L60-E, ELECTRONIC
NA1:
EMISSION SYSTEM GVW LESS THAN 8,500 LB
NP5:
STEERING WHEEL LEATHER WRAPPED
NRQ:
EXHAUST CLOSE COUPLED
N33:
STEERING COLUMN TILT TYPE
N90:
WHEEL
OSG:
PLANT CODE OSHAWA, ONT, CANADA (TRK)
Q4B:
GVW RATING 6,200 LBS
RSA:
RESTRAINT FRT SEAT, 208, AUTO, PASSIVE
SLL:
SALES PROCESSING SOLD ORDERS
VB3:
BUMPER RR STEP, CHROME, IMPACT STRIP
VG3:
BUMPER FRT IMPACT STRIP
VK3:
LICENSE PLATE FRONT FRT MOUNTING PKG
VXS:
VEHICLE COMPLETE
V22:
GRILLE RADIATOR, CHROME
V73:
VEHICLE STATEMENT USA/CANADA
XFN:
TIRE FRONT P235/75R15-105S RWL R/PE ST TL ALS
X88:
MARKET BRAND CHEVROLET
YD3:
AXLE (BASE EQUIP) FOR SCHEDULING GVW PLATE
YD6:
SPRING RR, BASE EQUIPMENT
YE9:
CONVENIENCE PKG COMFORT & DECOR LEVEL #3
YFN:
TIRE REAR P235/75R15-105S RWL R/PE ST TL ALS
ZFN:
TIRE SPARE P235/75R15-105S RWL R/PE ST TL ALS
ZQ2:
SALES PACKAGE DRIVER CONVENIENCE
ZQ3:
SALES PACKAGE DRIVER CONVENIENCE II
ZY1:
COLOR COMBINATION SOLID
1SB:
PACKAGE OPTION 02
1SZ:
DISCOUNT OPTION PACKAGE
554:
TRIM COMBINATION LEATHER, MUSHROOM (4) (94)
6WS:
COMPONENT FRT LH COMPUTER SEL SUSP (6WS)
64D:
TRIM COMBINATION CLOTH, LT BEIGE (D) (95)
64I:
INTERIOR TRIM LT BEIGE (I) (96)
7WS:
COMPONENT FRT RH COMPUTER SEL SUSP (7WS)
UP0:
RADIO AM/FM STEREO, SEEK/SCAN, AUTO REV MUSIC SEARCH CASS, CD, AUTO TONE, CLOCK, ETR
UQ3:
SPEAKER SYSTEM PERFORMANCE ENHANCED AUDIO