1992 - 2008 Mercury Grand Marquis


The codes listed below come from the Vehicle Certification Label which is typically attached to the door latch edge on the driver side door.

 

Axle Codes

L - Limited Slip Differential
C - Conventional Differential

Code

Ratio

1 2.73C

2

3.55C

4 (1992 - 2003)

3.42C

4 (2004 - 2005) 2.73C

5 (1992 - 2003)

3.27C

5 (2004 - 2005) 3.55L

6

3.73C

7

3.07C

8

2.73C

56 3.55L

58

2.73C

A

3.63C

AZ

3.08C

B

2.47C

C 3.27L
C6 3.55L

C8

2.73C

D

3.42L

DK

3.55L

E

3.27L

F (1992-2003)

3.45C

F (2004) 3.55 Locker

J

3.85C

K

3.55L

M

2.73L

R

3.45L

R2

3.55C

W

3.73L

X5 3.27L

Y

3.08L

Z

3.08C

Z5

3.27C


Transmission Codes

Code Model
H 4R70W
P AOD-E
Q 4R75W
Q (2008) 4R75E
R 4R75W
S 4R75W
T AOD
U 4R70W
U (2005) 4R75E
W 4R75E
X AX4N

 

 

 

 

 

 


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