Axle Codes

[sly]

+1 3.27 open.

[Kodachrome Wolf]

If that’s the tag on the axle, it sounds like a 3.27 open.

[Atropos]

My collegue found description on differential case: 3 27 86 6B06. Can You help with decode ?

[sly]

2-letter codes...

C8 - 2.73 conventional, 98+ Crown Victoria, Grand Marquis
58 - 2.73 conventional, 98+ Crown Victoria, Grand Marquis
8M - 2.73 locker, Crown Victoria, Grand Marquis
AZ - 3.08 conventional, 98+ Crown Victoria, Grand Marquis
JY - 3.08 conventional, 98+ Town Car
MY - 3.08 conventional, 98+ Town Car
YZ - 3.08 locker, Crown Victoria, Grand Marquis

Z5 - 3.27 conventional, 98+ Crown Victoria, Grand Marquis
5E - 3.27 locker, Crown Victoria, Grand Marquis
X5 - 3.27 locker, 98+ Crown Victoria, Grand Marquis
9E - 3.27 locker, 98+ Town Car
R2 - 3.55 conventional, 98+ Crown Victoria, Grand Marquis
55 - 3.55 conventional, 98+ Town Car
DK - 3.55 locker, 98+ Crown Victoria, Grand Marquis
2K - 3.55 locker, Crown Victoria, Grand Marquis
15 - 3.56 conventional, Continental

[SVT98t]

Courtesy of member Good Samaritan. Thanks!!!

These will/should appear on the sticker on the driver's side door. It sill be listed under "AXLE".
For example, if the axle code says "8", then it's an open diff with 2.73s.
If it says "K", then it's a locking diff with 3.55s.

Axle codes
Open/Lock/Ratio #
-----------------------
G / H / 2.26
B / C / 2.47
8 / M / 2.73
7 / - / 3.07
Y / Z / 3.08
4 / D / 3.42
F / R / 3.45
5 / E / 3.27
6 / W / 3.73
2 / K / 3.55
A / - / 3.63
J / - / 3.85



Enjoy.

-ryan s.