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'91 Sedan DeVille Silhouette Special
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Discussion Starter #1
At any point in time, was a Limited Slip Differential available for base 91-93 DeVilles? My car responds and acts like an LSD car - I've lit up both wheels at once, and one or the other depending on weight shift coming around corners.

It bothers me as a racer, not knowing. So someone help me :)
 

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1998 Deville D'Elegance
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133 Posts
Never heard of one but if you look on the RPO list (should be either on the spare tire cover or in the glove box, it's a white sticker with your vin # on it and a BUNCH of 3 digit codes. Write them down (carefully) and post it and I'll let you know.
 

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'91 Sedan DeVille Silhouette Special
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Discussion Starter #3
AG2 AJ3 AM6 AT6 A79 A91 B34 B35 B48 C68 DA0 DK2 D64
D74 D89 D98 FE1 FP3 IQ4 JM4 KG9 L26 MX0 M13 NA5 NP5
0RN PH6 QGZ UQ1 UW4 UX1 U23 U75 VD6 VD7 V73 YL1 YN6
YN7 Y27 1SC 20F 20I 209 22A 28U 6HD 7HD 8XC 9XC
99L

Can you give me a total list of what the hell that stuff means? I know a couple, but never have looked up the rest. It would be very appreciated, and thank you in advance.
 

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1998 Deville D'Elegance
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AG2 - Power multi-directional passengers seat adjuster
AJ3 - Drivers airbag (called drivers inflatable restraint)
AM6 - Front Split Bench Seat
AT6 - Manual Recline Passengers Side Seat (conflicts with AG2?)
A79 - Manual Reclide Drivers Side Seat
A9L - 3 person rear seat (You put A91 I belive it's A9L as 91 is for a tailgate)
B34 - Carpeted Floor Mats - Front
B35 - Carpeted Floor Mats - Rear
B48 - Luggage Compartment Trim (possibly a storage net?)
C68 - Automatic Front Heat / AC Electronic Controls
DA0 - Front Seat armrest with storage
DK2 - L & R heated power outside mirors
D64 - Rear illuminated sunshade (RT Side) (vanity mirrors?)
D74 - Rear illuminated sunshade (LT Side) (vanity mirrors?)
D89 - Special Decor Paint
D98 - Accent Stripe
FE1 - Soft Ride Suspension
FP3 - 2.73 transaxle ratio
IQ4 - Interior Trim Design
JM4 - 4 wheel antilock - front disc - rear drum w/power assist
KG9 - 140 Amp Altenator
L26 - 3.8 Liter V6 (Huh?)
MX0 - Provisions for Auto O/D Transmission
M13 - 4T60-E Automatic transmission
NA5 - Federal Emmisions
NP5 - Leather Steering wheel
0RN - (actually I belive this is ORN - Orion, MI Plant)
PH6 - 15x6 alluminum wheel
QGZ - 205/70/15 tires all season
UQ1 - Provision for AM/FM Stereo radio
UW4 - 4 speaker custom stereo
UX1 - AM/FM Stereo cassette w/ equalizer
U23 - Instrument cluster w/ trip odometer
U75 - Power Antenna
VD6 - Front Aluminum bumper provision
VD7 - Rear Aluminum bumper provision
V73 - USA/Canada Vehicle statement
YL1 - (Y1L? DK Red / Rose Color)
YN6 - Domestic order processing
YN7 - Central Office Orders
Y27 - Sales Zone - Central
1SC - Option Package 3 (boy that's descriptive)
20F - Floor Mat - Very Dark Sapphire
20I - Interior Trim - Very Dark Sapphire
209 - ?
22A - Light Sapphire Blue Accent Stripe
28U - Exterior Black Sapphire Metallic (sounds nice)
6HD - Left Front Computer Selectable Suspension (RSS)
7HD - SAME AS ABOVE - Except Right Front
8XC - Same as above - Except Left Rear
9XC - Same as above - Except Right Rear
99L - Secondary Color - Mandarin or Hugger Orange (WHAT!!??)

Here is a link to the doccument (.PDF) I got this from - it's 188 pages long and is about 1.22 megabytes in size. - Several minutes on a slow connection.

http://myweb.accessus.net/~090/resources-cad.html

TONS of other great info here including downloadable owners manuals and diagnostic info.
 

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1998 Deville D'Elegance
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Didn't see any LSD (for you too tired to keep your eyes open but still here people that's Limited Slip Differential not the drug :alchi: ) options for the codes you listed...
 

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'91 Sedan DeVille Silhouette Special
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Discussion Starter #6
I didn't either. But I will say I never knew my car had Hugger Orange on it, or a V6, or a manual driver's seat.
 

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'91 Sedan DeVille Silhouette Special
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It's also funny to note that two codes you thought I had got wrong are actually printed the way I typed them in my post. I think maybe GM's engineers were doing some LSD when they put that list together. It was ORN, though, my mistake.
 

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1998 Deville D'Elegance
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Yeah and sometimes there are mid production code changes...the V6 and the orange were the dumbest things I saw.... besides that you can get a new cadillac with a V6 :)
 

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Then sometimes I think a car leaves the factory with one option and a dealer installs a different one (like a better stereo) and prints a new sticker and appends that code to it.
 
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