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Looking for RPO codes

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Old Dec 23, 2025 | 01:01 PM
  #1  
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Looking for RPO codes

I know this has been discussed and i did searches:

1- Picked up an 89 GTA and have been cleaning it up etc.
2- So far no RPO codes, removed carpet, checked seats (they may have been replaced with period correct GTA seats in nice condition), not in glove box, not in hatch compartments, not in spare tire wheel well. have not checked behind dash or on top of gas tank
3- Contacted PHS and they only cover up to 1986
4- Obtained from GM archives the document 'Ive attached (hope it is viewable)
5- color schemes vary in car such as rear seats belts are tan, but one looks like saddle or beech wood. The actual rear belts under the plastic are tan, but the the front seat belts are red underneath plastic covers? The interior plastics are sun faded as well
6- doing my best to match things up, etc.
7- The wrap around spoiler is toast with respect to the mounting points (have a fiberglass one)
8- The car is reddish with gold spoke wheels & the ground effects are newer (black)
Anyways like information, not looking to restore this to original per se, just want to understand what i got.
the car runs/drives, but has the first shift slip in the transmission.................
Any suggestions would be appreciated. This is my first Firebird, have been driving 3rd & 4th gen Camaros for last 20 years on the daily
with gratitude, thank you


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Old Dec 23, 2025 | 01:15 PM
  #2  
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Car: 1988 Iroc
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt 2.77 Posi
Re: Looking for RPO codes

Might have a member chime in here with a Compnine account that could run your VIN for you.
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Old Dec 23, 2025 | 01:25 PM
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Lakerman62's Avatar
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

Thanks. I should have mentioned that i tried that too, but they could not recognize my Vin #? Weird. I tried multiple times double checking numbers vs letters etc. Just Weird. Maybe it's worth another try since I got the car registered n Vin checked out in my state. Thanks again
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Old Dec 23, 2025 | 01:29 PM
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

Tried it again, my VIN is not recognized?
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Old Dec 23, 2025 | 01:47 PM
  #5  
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Re: Looking for RPO codes

PM me the VIN and I will check with Compnine.

1989 is about the earliest, unless the vehicle was an export, for records to be in Compnine's database for our ThirdGens. Most 1989 ThirdGens are not in their database.

You said you included the GM Archive document but it's not in your post. You have two of the same images of the car in your post.

Unfortunately, if the car is not an export and/or not in Compnine's database, you likely will never know all the RPO codes unless you do find the master buildsheet. Most buildsheets were removed/trashed so there is not a high chance of one being in the car.

That said, what exactly are you looking for? Most GTAs are fairly uniform.
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Old Dec 23, 2025 | 02:46 PM
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

Sorry about pics etc. Ill figure it out later:
VIN # 1G2FW2184KL204735

Thanks
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Old Dec 23, 2025 | 02:55 PM
  #7  
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Re: Looking for RPO codes

Yeah, it's not in Compnine's database. Like I said, most 1989s aren't.

Just based on the VIN, it's a 1989 Trans Am or Trans Am GTA with the 350. The RPO codes would verify more.

Also, the paint theme is not correct. All GTAs were monotone.
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Old Dec 23, 2025 | 02:55 PM
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

just looking for codes for interior colors, want to confirm that i have the "regular" brakes off the top of my head, here are all the docs i got form archive
Attached Files
File Type: pdf
1989 VINcard.pdf (1.67 MB, 19 views)
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Old Dec 23, 2025 | 02:56 PM
  #9  
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

thank you for the info/response...........appreciated
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Old Dec 23, 2025 | 03:12 PM
  #10  
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Re: Looking for RPO codes

The car was originally Flame Red (dark red) with medium gray leather seats, so it would have matching gray/black interior trim.
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Old Dec 23, 2025 | 03:40 PM
  #11  
Lakerman62's Avatar
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

Interesting, PO swapped to tan interior, which looks good to me. Just gotta get carpet. Thanks 4 info
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Old Dec 25, 2025 | 11:34 AM
  #12  
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From: Vancouver Island, 🇨🇦
Car: 1989 RU7 1LE / 1997 RS
Engine: 305 TPI / 3800 Series III
Transmission: T5 / T5
Axle/Gears: 3.45 / 3.23
Re: Looking for RPO codes

Just out of curiosity, is the speedometer / odometer in miles or kilometers?
My neighbour's used to have one with the same colour combination.
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Old Dec 25, 2025 | 11:39 AM
  #13  
Lakerman62's Avatar
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

It's in miles. The odometer wasn't working so I swapped entire cluster. Found fog light switch n got em hooked up with new lights. There's lots of little things needed replaced or buttoned up. Looks like they spray painted carpet to hide damage? But having fun with this one. Happy holidays
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Old Feb 2, 2026 | 02:05 PM
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Re: Looking for RPO codes

Apparently, you want to understand exactly what your car had from the factory and simply know and understand the car. Try checking the vin search at https://carfast.express/en/vin_decoder. It will show factory options, color, and transmission, even for such old Firebirds. This can help you figure out which seats or belts were actually original. As for the transmission, slippage on the first shift is most often due to either the clutch or the synchronizers.

Last edited by OllonsNisok; Feb 12, 2026 at 07:04 AM.
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Old Feb 2, 2026 | 02:50 PM
  #15  
Lakerman62's Avatar
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

you're right, well said/thank you
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Old Feb 3, 2026 | 12:03 PM
  #16  
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Re: Looking for RPO codes

Here are the important RPOs
AM9 - Split Rear folding Seat
AQ9 - Deluxe articulating seats
A31 - Power Windows
A90 - Locing rear compartment remote control
B20 - Luxury Trim
B2L - Engine Package 350
B34 - Floor Mats Front
B35 - Floor Mats Rear
B67 - Box Storage Cassette Tape
B84 - Body Side Moldings
BC8 - Door map pockets RH & LH
BV3 - Black I/P
CC1 - T-tops
C49 - Rear Defogger
C60 - Air Conditioning
D42 - REar Cargo Screen Cover
D81 - Rear Aero Spoiler
FE2 - Performance Suspension (WS6)
GW6 - 3.27 Axle Ratio
G80 - Limited Slip Axle
IL2 - Interior Trim Leather
JG1 - Aluminum Driveshaft - More than likely
J65 - 4 Wheel Disc Brakes
KC4 - Oil Cooler
K34 - Cruise Control
K68 - 105 Amp Alternator
L98 - 350 Engine
MD8 - Automatic Transmission 4 speed
MX0 - Automatic Transmission Provisions
NA5 - Federal Emissions
NK4 - Sport Leather Steering Wheel
N10 - Dual Catalytic Convertors - You might not have this as it is an early car
N64 - Space Saver Aluminum Spare Tire
PW7 - Cross Lace Wheels
QLC - 245-50R16 Tires
R6A - Value Option Package - Includes Leather & T-tops
TR9 - Interior Lamp Group
T93 - Trans Am/GTA Tail Lamps
T96 - Fog Lamps
UB3 - Gauges Mechanical Tach, Speedo, Oil, Temp, Fuel, Voltmeter
UF6 - Interior Courtesy Lamp
UK3 - Steering Wheel controls (only if you do not have CD Player)
UQ1 - Radio Provisions
UT1 - Warning Tone generator
U25 - Rear Compartment Courtesy Lamp
U29 - Instrument Panel Courtesy Lamp
U62 - 4 Speaker System
U75 - Power Antenna
VAN - Van Nuys CA production Plant
VK3 - Front License Plate Bracket You may or may not have this
V73 - Vehicle Statement - USA/Canada
WS4 - Trans Am
WS6 - Performance Suspension
WW6 - Brilliant Red Metallic Paint Aero Package
W62 - Aero Package
Y84 - GTA
1SZ - Discount Option Package
52P - Gold Wheel color
74U - Flame Red Metallic Paint
82I - Interior Trim Med Gray
822 - Gray Leather
829 - Gray Seat Belts

That should be most of them for your car.
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Old Feb 4, 2026 | 04:52 AM
  #17  
Lakerman62's Avatar
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From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: Looking for RPO codes

thank you, this is very helpful!
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