Rear axle decoding
Posting Guru
Joined: Jan 2006
Posts: 1,314
Likes: 0
From: Outer Banks, NC
If you have a F150 look on your door jam sticker under "Axle". It will be one of the following codes.
19 – 3.55 Non-LS
H9 – 3.55 LS
B6 – 3.73 LS
You can also look on your rear axle differential cover and it will have a tag with the gear ratio.
19 – 3.55 Non-LS
H9 – 3.55 LS
B6 – 3.73 LS
You can also look on your rear axle differential cover and it will have a tag with the gear ratio.
MMNC (SS)(Ret)
Joined: Mar 2004
Posts: 11,598
Likes: 145
From: SE Georgia
that above is the list. it's missing the 10.25 axle info, but those are really rare....and they are always 4.10 gears
FTE has a list in the Tech Area...but it's mainly for the 60's to 1997 trucks
FTE has a list in the Tech Area...but it's mainly for the 60's to 1997 trucks
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