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post #1 of 7 (permalink) Old 07-19-2015, 12:51 PM Thread Starter
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Posi-Traction

Hey everyone, I own a 94 TBird Lx V8, and it doesn't have posi, How can I change this. Can I get a rear end from a Mark VIII and swap it in. Also, is there a way to swap in the air bag system from the Mark VIII. thanks...
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post #2 of 7 (permalink) Old 07-19-2015, 02:28 PM
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You would have to swap the open carrier to a traction lok. You could either have one added to yours or swap in a whole pumpkin that has a traction lok in it. I don't believe the Mark VIII had a traction lok, someone correct me if I'm wrong!

What's wrong with the air bags in yours?

Joe

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post #3 of 7 (permalink) Old 07-19-2015, 02:47 PM
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http://forums.tccoa.com/showthread.php?t=151897

1999/2001 Cobras also have the same differential with 3.55s. I don't know if they all came installed with trac-lok though.

If you are going to pull a differential from the junkyard.
Door jam sticker codes:


You can also look at the tag that is bolted to the differential cover. Mine reads:
3L73 8 8

I'm guessing 3.27 Trac-Lok would be:
3L27 8 8



And, because I see people get fanatical about the various names for limited-slip differentials.

Alfa Romeo: Q4, Q2
Audi: Quattro, Quattro with Sport Differential (rear axle)
American Motors: Twin-Grip
BMW: X-Drive, X-Drive with Dynamic Performance Control (rear axle), Active M Differential (FR-based M-models)
Buick: Positive Traction. Gran Sport models used the term "Limited-slip (differential)"
Cadillac: Controlled
Chevrolet/GMC Positraction
Chrysler: Sure Grip
Dana Corporation:Trak-Lok or Powr-Lok
Ferrari: E-Diff
Fiat, Lancia: Viscodrive
Ford: Equa-Lock and Traction-Lok
Hyundai: HTRAC
International: Trak-Lok (clutches only) or Power-Lok (clutch and ramping engagement process)
Jeep: Trac-Lok (clutch-type mechanical), Tru-Lok (gear-type mechanical), and Vari-Lok (gerotor pump), Power Lok
Maserati: Equ-Tor
Oldsmobile: Anti-Spin
Pontiac: Safe-T-Track
Porsche: PSD (electro-hydraulic mechanical), Porsche Torque Vectoring/Plus (PTV/Plus, combined electro-hydraulic mechanical and brake-based type; rear axle only)
Saab: Saab XWD eLSD
Studebaker-Packard Corporation: Twin Traction
TVR: Hydratrak
Yukon Gear & Axle: Duragrip
Mercedes: ASR, AMG Rear-Axle Differential Lock (active differential on select FR-based AMG/S models; pure mechanical variant also present on select non-S AMG models)

Last edited by skinnytick; 07-19-2015 at 03:04 PM.
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post #4 of 7 (permalink) Old 07-19-2015, 05:24 PM Thread Starter
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I don't really know how to read the sticker, I'll post a pic of it soon...
Quote:
Originally Posted by skinnytick View Post
http://forums.tccoa.com/showthread.php?t=151897

1999/2001 Cobras also have the same differential with 3.55s. I don't know if they all came installed with trac-lok though.

If you are going to pull a differential from the junkyard.
Door jam sticker codes:


You can also look at the tag that is bolted to the differential cover. Mine reads:
3L73 8 8

I'm guessing 3.27 Trac-Lok would be:
3L27 8 8



And, because I see people get fanatical about the various names for limited-slip differentials.

Alfa Romeo: Q4, Q2
Audi: Quattro, Quattro with Sport Differential (rear axle)
American Motors: Twin-Grip
BMW: X-Drive, X-Drive with Dynamic Performance Control (rear axle), Active M Differential (FR-based M-models)
Buick: Positive Traction. Gran Sport models used the term "Limited-slip (differential)"
Cadillac: Controlled
Chevrolet/GMC Positraction
Chrysler: Sure Grip
Dana Corporation:Trak-Lok or Powr-Lok
Ferrari: E-Diff
Fiat, Lancia: Viscodrive
Ford: Equa-Lock and Traction-Lok
Hyundai: HTRAC
International: Trak-Lok (clutches only) or Power-Lok (clutch and ramping engagement process)
Jeep: Trac-Lok (clutch-type mechanical), Tru-Lok (gear-type mechanical), and Vari-Lok (gerotor pump), Power Lok
Maserati: Equ-Tor
Oldsmobile: Anti-Spin
Pontiac: Safe-T-Track
Porsche: PSD (electro-hydraulic mechanical), Porsche Torque Vectoring/Plus (PTV/Plus, combined electro-hydraulic mechanical and brake-based type; rear axle only)
Saab: Saab XWD eLSD
Studebaker-Packard Corporation: Twin Traction
TVR: Hydratrak
Yukon Gear & Axle: Duragrip
Mercedes: ASR, AMG Rear-Axle Differential Lock (active differential on select FR-based AMG/S models; pure mechanical variant also present on select non-S AMG models)
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post #5 of 7 (permalink) Old 07-19-2015, 05:50 PM Thread Starter
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This website helped decode my car

http://www.shnack.com/articles/17/#paint
1994 - 2004 VIN & Data Plate Decoder

Posted on September 4, 2005

Page 1 of 1



Sources: various manuals and internet sites.

Below is an example of the Vehicle Certification Label as found on the driver side doorpost. Click on the various items on the example label for more more
information about that item. This will help you decode the VCL on your recent model (1994 and up)




MFD. BY FORD MOTOR CO. IN U.S.A.
DATE: XX/XX GVWR: 4521LB/2050KG
FRONT GAWR: 2384LB
REAR GAWR: 2154LB 1081KG
977KG
THIS VEHICLE CONFORMS TO ALL APPLICABLE FEDERAL MOTOR
VEHICLE SAFETY, BUMPER, AND THEFT PREVENTION STANDARDS
IN EFFECT ON THE DATE OF MANUFACTURE SHOWN ABOVE.
VIN: 1FALP4040SF100001
TYPE: PASSENGER

KF
24

EXTERIOR PAINT COLORS
DSO

BODY BRK VR MLDG. INT TRIM TAPE R S AX TR
BA2


66
M
8 5EDHH





DATE

Month and year of production in MM/YY format.

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GVWR
Gross Vehicle Weight Rating. This is the maximum allowable weight of the fully loaded vehicle, including liquids, passengers, cargo, and the tongue weight of any towed vehicle.

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FGAWR
Front Gross Axle Weight Ratio. This is the maximum allowable weight the front axle is designed to carry including the weight of the axle assembly itself. GAWR is established by considering the rating of each of its components (tires, wheels, springs, axle), and rating the axle on its weakest link. The GAWR assumes that the load is equally dispersed on either side.

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RGAWR
Rear Gross Axle Weight Ratio. The maximum allowable weight the rear axle is designed to carry including the weight of the axle assembly itself. GAWR is established by considering the rating of each of its components (tires, wheels, springs, axle), and rating the axle on its weakest link. The GAWR assumes that the load is equally dispersed on either side.

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VIN (Vehicle Identification Number)
The 17 digit VIN can be split up in a number of parts. Each signifying a certain item.
Let's for example decode VIN 1FA L P40 4 0 S F 100001




DIGITS
MEANING
01-03
World Automobile Identifier
1FA - Ford, USA, passenger car
1FD - Ford, USA, incomplete vehicle
04
Vehicle Restraint System Type Code
L - Active safety belts all positions, first generation air bags
F - Active safety belts all positions, second generation air bags.
05-07
Vehicle Line, Series, Body Type (for Passenger Car)
P40 - Two-door coupe
P42 - Two-door coupe, GT
P44 - Two-door convertible
P45 - Two-door convertible, GT
P46 - Two-door convertible, Cobra
P47 - Two-door coupe, Cobra
P48 - Two-door coupe, Cobra
08
Engine Displacement/Number of Cylinders
4 - 3.8L, EFI, six cylinder
C - 5.8L, Cobra R, eight cylinder
D - 5.0L, Cobra, eight cylinder
T - 5.0L, H.O, eight cylinder
X - 4.6L, EFI (SOHC), eight cylinder
W - 4.6L, EFI (SOHC), eight cylinder
V - 4.6L, EFI (DOHC), eight cylinder
Y - 4.6-liter, DOHC 4-valve V-8 engine, eight cylinder, Supercharged
09
VIN Check Digit
Always a numerical digit from 0 to 9
10
Model Year
R - 1994
S - 1995
T - 1996
V - 1997
W - 1998
X - 1999
Y - 2000
1 - 2001
2 - 2002
3 - 2003
11
Assembly Plant Identifier
S - Pilot Plant at Allen Park, Michigan (USA)
F - Dearborn, Michigan (USA)
12-17
Production Sequence Number
This starts with 100001 at the beginning of every new model year.



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EXTERIOR PAINT COLORS


Laser Red E9
Rio Red E8
Vibrant/Performance Red ES
Autumn Orange Metallic BG
Bright Tangerine CM
Black (Ebony) UA
Crystal/Ultra White ZR
Oxford White Z1
Mineral Grey Metallic TK
Silver Clearcoat Metallic YN
Opal Frost WJ
Satin Silver Pearl TL
Silver YN
Sunburst Gold BP
Teal RD
Bright Blue KF
Azure Blue (Mach 1 only) L5
Sapphire Blue JA
Moonlight Blue Metallic KM
Atlantic Blue Metallic K6
Bright Atlantic Blue Metallic K7
True Blue Metallic L2
Sonic Blue Pearl S1
Sonic Blue ML
Deep Violet Metallic JU
Iris GC
Dark Highland Green Metallic PX
Dark Highland Green Metallic PY
Dark Green Satin Metallic FU
Electric Green SW
Pacific Green Metallic PS
Amazon/Tropic Green SU
Deep Forest Green Metallic NA
Canary Yellow BZ
Zinc Yellow B7
Chrome Yellow BZ
N/A Dark Shadow Grey CX
N/A Redfire Clearcoat G2
N/A Torch Red D3
2004 Mystic G6



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DSO
Standing for the District Sales Office. The DSO identifies the area of the country the car was to be shipped to.



DSO LOCATION DSO LOCATION DSO LOCATION
11 Boston Region 47 Cincinnati Region 79 West Marketing Area
13 New York Region 48 Detroit Region 81 Ford Home Office / Mazda Constant Dealer Code
16 Philadelphia Region 49 Great Lakes Marketing Area 82 Nissan for 1993
19 North Marketing Area 52 Dallas Region 83 Government
21 Atlanta Region 53 Kansas City Region 84 Home Office Reserve
23 Memphis Region 56 Denver Region 85 American Red Cross
24 Orlando Region 58 Twin Cities Region 86 Recreational Vehicle Pool
27 Washington Region 59 Central Marketing Area 87 Body Company
29 South Marketing Region 71 Los Angeles Region 89 Transportation Services
41 Chicago Region 72 San Francisco Region 90s Export
44 Pittsburgh Region 74 Seattle Region





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Body Style


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Brake Type code

•2 Four-wheel disc with anti-lock brake system (SRS)
•3 Traction control
•5 Four-wheel disc with anti-lock brake system (ABS) and traction control.

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Vinyl Roof
Specifies type of sun/vinyl roof.

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Molding
Specifies type of molding and color.

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Internal Trim
Specifies type of internal trim. The first digit indicates type of seat and the second digit indicates the interior color.
•2 Medium Graphite
•9 Rhodes Cloth (individual)
•D Leather/Leather (sport)
•H Medium Parchment
•T Leather/Vinyl (individual)
•U Shadow/Twill Cloth (individual)
•W Midnight Black
•X Leather/Vinyl (sport)
•Z Oxford White
•L2 Medium Graphite

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Tape
Color of a tape/paint stripe if one is present.
•AA Black (rocker panel accent stripe)
•MM Saddle/Gold (rocker panel accent stripe)
•WW White (rocker panel accent stripe)

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Radio
Type of radio installed.
•1 Premium AM/FM stereo with compact disc, clock and premium sound system.
•8 Mach 460 premium AM/FM stereo with cassette, clock and sub-woofer sound system
•9 Mach 460 premium AM/FM stereo with compact disc, clock and sub-woofer sound system

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Sunroof
Specifies type of factory installed sunroof.
• B Sliding sunroof
• C Removable sunroof
• D Removable sunroof

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Rear Axle
The Rear axle ratio and type.

• L - Limited Slip Differential
• C - Conventional Differential

1 2.87C
2 3.55C
4 3.42C
5 3.27C
6 3.73C
68 2.73C
7 3.07C
78 2.73C
8 2.73C
A 3.08L
A 3.63C
AM 2.73L
B 2.47C
BM 2.73L
C 3.27L
D 3.42L
E 3.27L
EZ 3.08L
F 3.45C
HZ 3.08L
J 3.85C
K 3.55L
LE 3.27L
M 2.73L
ME 3.27L
R 3.45R
SE 3.27L
VM 2.73L
W 3.73L
X5 3.27C
Y 3.08C
Z 3.08L
Z5 3.27C

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Transmission
A 5 character value; the first character indicates transmission type, characters 2-5 indicate spring type, Front/Rear.

Transmission Codes


Code Model
P AODE
T AOD
2 (5.0L) M5OD
5 Five-speed manual, T5OD
6 Five-speed manual, T45OD
U Four-speed automatic (4R70W)
K Five-speed manual, Tremec TR-3650



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post #6 of 7 (permalink) Old 07-19-2015, 06:08 PM Thread Starter
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When I said air bags, I meant the suspension on the Mark VIII

Quote:
Originally Posted by Rodeo Joe View Post
You would have to swap the open carrier to a traction lok. You could either have one added to yours or swap in a whole pumpkin that has a traction lok in it. I don't believe the Mark VIII had a traction lok, someone correct me if I'm wrong!

What's wrong with the air bags in yours?

Joe
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post #7 of 7 (permalink) Old 07-19-2015, 06:44 PM
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All the Lincolns VIIIs had open differentials. None were TractionLocks. They used electronic Traction Assist instead that worked with the ABS system to reduce wheel spin. As far as I know they were all 3.08 and 3.07 gears. They are desirable for the aluminium housing though. You can easily swap in a TractionLock center section and the gear of your choice.

I always loved the "spin" the respective companies marketing depts put on their limited slip differential names.

The Equa-Lock died a long time ago. Thank Goodness. They weren't very robust.

That list is missing the Detroit Locker. While not made by Ford it was offered in some of the Shelbys. Possibly Drag Pack cars.

Many, many MK VIII owners have converted from air springs to conventional springs. That should tell you something. If for some reason you want to add some load carrying capacity or bump the ride weight a little you can ad AirLift airbags to your rear coils. The Lincoln air suspension system is a entirely integrated system. And while I'm sure some one one some where's swapped the entire system to a MN12 I'm not sure why you would want too. It would be a huge undertaking only to be faced with the same issues the Lincoln owners are faced with that cause them to convert to springs.

Adding Airlift Springs is really meant to level the car when it's loaded. It's not a cure for sagging springs than need to be replaced.

Last edited by 97CatMan; 07-19-2015 at 07:07 PM.
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