I wanted to know if there is another way to find out what trans and other components I have on my 91 Caprice Classic TBI 305, with out the label.
Thank You

I wanted to know if there is another way to find out what trans and other components I have on my 91 Caprice Classic TBI 305, with out the label.
Thank You

If you don't have the label in the trunk, then it's the hard way (visual inspection).

Well I know I have the 305 TBI and for the year and make I think I have the 4L60 trans are there any identifying marks on the trans its self.

Well I know I have the 305 TBI and for the year and make I think I have the 4L60 trans are there any identifying marks on the trans its self.

the pan bolt pattern will reveal what transmission you have...on the passenger side of tranny there are codes stamped into the metal ..this will give you all the info to id the tranny..the other place would be at the rear of tranny...

Thank you for the help.

Well I know I have the 305 TBI and for the year and make I think I have the 4L60 trans are there any identifying marks on the trans its self.

Cast into the bellhousing on the passenger side will be the code "MD8". Also, without looking at that, the pan will be rectangular in appearance. I believe that from 1991 through 1993, the TH700R4/4L60 is the only trans available on the Caprice.

The RPO code for the axle is stamped on the front of the RH tube. As long as you are under there, you might as well get that, too.

If you slide the radio out of its mount, it likely still has the paper Alpha label on it.

You can determine the interior trim codes just by looking at the upholstery and options.

The exterior color codes should be easy to determine.

Spring codes may be difficult if the Alpha labels are gone.

The engine, ABS, and assembly plant codes should be identifiable based on the VIN number.

The tire, wheel, brake, spare tire, audio system wiring, emissions system, HVAC, alternator, trans cooling, towing package, and many other features should be apparent just by looking. A new label can be built and printed from what you determine.

These are common codes:

AA7 - Power window, express down
AG1 - Seat FRT 6-way power driver, split bench
AG2 - Seat FRT 6-way power pass, split bench
AK5 - SIR, driver
AP9 - Convenience net
ARL - Arlington, TX AssemblyPlant
AS7 - Seat, FRT split bench
AU0 - Remote keyless entry
AU3 - Electric locks
A90 - RR compt electric release
BA5 - Custom ext ornamentation
BC9 - Hood ornament DELETE
BD2 - Ext ornamentation DELETE
BV2 - Custom RR compt lid ornamentation
BV8 - Custom door handle / lock ornamentation
B19 - Custom interior ornamentation
C49 - RR electric defogger
C60 - Air conditioning, manual control
C71 - FRT door courtesy lamps
C96 - Courtesy and reading lamps
DD2 - Dual sunshade covered mirrors
DF6 - Custom ext mirrors
DL8 - Dual electric remote mirrors w/ defog
D55 - Full floor console
D64 - Dual sunshade illuminated mirrors
FE4 - Suspension, deCarbon shocks
FE9 - Emissions system, federal /CARB Tier 2
GU4 - RR axle ratio 3.08
G80 - Limited slip differential
JB9 - Brake???
JL9 - Brakes, PWR FRT/RR disc, antilock
KC4 - Engine oil cooling
KD1 - Transmission oil cooling
KG9 - Generator 140A
K34 - Electronic cruise control
LT1 - 5.7L SFI V8 engine, HO
MX0 - Automatic transmission w/ ODM38 - Automatic THM 4L60E
NA5 - Emissions system, federal Tier 0
NK4 - Leather sport steering wheel
N10 - Full dual exhaust system
N40 - Power steering, non variable
N81 - Full size spare tire
PB4 - Lock control, wheels
QA0 - Wheel, 17 x 8.5 aluminum styled
QBJ - Tires, P255/50ZR17 SBR BSW
TL4 - Painted grille
T43 - RR spoiler
T82 - Automatic on/off headlight control
T87 - Cornering lamps
UM6 - ETR AM/FM stereo S/S Cass auto-rev
UQ1 - Stereo radio wiring
UQ5 - 4 speaker dual FRT ext range dual RR
U02 - Cluster, INST, kilo & miles, digital speedometer
U75 - Power antenna
VK3 - Front license bracket
V03 - Heavy duty cooling system
V73 - Fixed antenna
WS7 - Model conversion, Impala SS
WX3 -
Z09 - Model conversion, Caprice Classic
1AY - Special Build, Customer Ordered
1SB - Option package 02
14I - Interior trim, Lt. gray (92)
143 - Trim combination, leather Lt. gray (3) (92)
41Q - Molding color, BLK
41U - Primary ext color, BLK
6TY - Spring, Left Front, Computer Selected
7TY - Spring, Right Front, Computer Selected
8HL - Spring, Left Rear, Computer Selected
9HL - Spring, Right Rear, Computer Selected

Thank you for all your help guys Happy New Year