Hello:

I looked up the RPO codes and the car seems to have every option avail plus there are some codes I cannot find. If anyone can decode some of these I would appriciate it.

ut1
ub3
uk3
u62
v73
ww1
w62
ya7
1sz
11Q
40v
52p
62x
661
7zx
8nl
9n7

 

UB3 : CLUSTER, INST, OIL, COOL TEMP, VOLTS, TRIP ODOM, TACH
U62 : SPEAKER SYSTEM, DUAL COAXIAL
V73 : ANTENNA, FIXED
8NL : COMPUTER SELECTED REAR LEFTHAND SPRING
9NL : SPRING, COMPUTER SELECTED, REAR, RIGHT HAND

I think your 9N7 is really 9NL... Those are the ones I have.

 

Thanks

It has a power antenna. Here are all my codes

AAA
AM9
AQ9
AU3
A31
A90
BC8
BV3
B2L
B20
B67
B84
CC1
C49
C60
DC4
DE4
DG7
D3Y
D42
D81
D9b
E5Z
E9Z
FE2
GW6
G80
IL2
JG1
J65
KC4
K34
K68
L98
MD8
MXO
NA5
NK4
GW6
N64
PW7
QLC
R6A
TR9
T93
T96
UB3
UF6
UK3
UC1
UT1
UT4
U25
U29
U62
U75
VAN
VG8
VK3
V73
WS4
WS6
WW1
W62
YA7
YF5
Y84
1SZ
11Q
4OU
52P
6ZX
661
662
669
7ZX
8NL
9N7

 

UT1: buzzer, tone generator warning.

UB3: cluster, instrument (oil, temp,
volts, trip odo and tachometer.

UK3: electronic system, accessory control.

U62:???

V73: VK3? mounting, front plate.

WW1: aero package #1, white.

W62: aero package.

YA7: ???

1SZ: ???

11Q: molding color (white).

40V: 40U? exterior color primary white.

52P: wheel color, gold metallic.

62X: 6ZX? spring, front left.

661: interior trim, Beechwood.

7ZX: spring, front right.

8NL: spring, rear left.

9NL: spring, rear right.

 

I dont see G92 or N10 on that list, so you must have a single cat and 2.77 9-bolt rear end? Ugh!

 

It has gw6 = 3.27 rear axle
G80= limited slip

 

1989:
225 HP @ 4400 RPM / 330 FT/LB @3200 RPM
(235 HP @ 4400 RPM / 335 FT/LB @ 3200 RPM with RPO N10)

The N10 only gave 10hp can't I just install that myself?

Plus in 1989 GTA only came with 3.27 and 3.45 with the stick.

Only with the Iroc could you get the 2.77's or in 1987 with the GTA

 

The dual cat is only worth 10 horsepower in the stock engine. Technically, you can't alter the car by putting dual cats on it. The single cat is part of the original build. If you change it, no one will notice. However, if you are going to leave the car stock anyway, why bother. It won't make any difference on the road. 10 hp won't even be noticeable. When the cats, fail a dual cat car is twice as expensive to fix. The dual cats only help if you start modding the car with headers, a cam, heads, bigger intake system, etc.

 

I don't have the g92 option code but the rear end on my car has 10 bolts...Isn't that the performance one?

 

The nine bolt is the stronger third member. Recount the bolts. My 1989 has the nine bolt.

 

Then what is Kevin91Z saying above. That if I don't have the g92 option than I have a 9 bolt 2.77 gear. My car has 3.27 gears. I am also being told by others that the G92 was not even an option for GTA?!?!?!? I'm getting confused!

 

You don't need the G92 option on a GTA to have the 3.27 9-bolt axle. It's a 5.7L/350 with 700R4 trans, so you should have the 3.27 9-bolt rear with PBR brakes.

 

Do you see a Tag on your rear end? Should be on the cover with one of the Bolts. But you counted 10 bolts? Is there a Rubber plug in your cover? You have J65 brakes..

 

I went to the tire shop today to get new rear shocks and I was able to get a proper count it has 9 bolts and it has a Borg Warner stamp on it. I also had a tag off of one of the bolts with some codes on it. So I guess its the right one

 

I am being told by many people the following:

Although I do not have the n10 code, The G92 code was not used by Pontiac. The GW6 (which is one of my codes) and is the Borg Warner 9 bolt (3:27 ratio)..

 

O.k Cool..

 

Here is a photo of my 89 GTA