Decode rear axle
Senior User
Joined: Nov 2005
Posts: 130
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From: Ontario,Canada
try this site might help you with what your looking for.
https://www.ford-trucks.com/article/idx/7/017/article/Ford_Door_Sticker_Decoder.html
https://www.ford-trucks.com/article/idx/7/017/article/Ford_Door_Sticker_Decoder.html
Junior User
Joined: Jan 2008
Posts: 79
Likes: 0
From: OC-CA.
XLT should have the 9.75 rear end. FX4's have the larger size. The sticker on the door will tell you what axle size you have after you decode it. I beleive it's a letter that you need to translate to a number.
MMNC (SS)(Ret)
Joined: Mar 2004
Posts: 11,606
Likes: 151
From: SE Georgia
4.6 2v motor = 8.8 axle
5.4 3v motor = 9.75 axle
5.4 3v motor with Heavy Duty package = 10.25 axle (7 lug)
what does your door sticker say in the axle part? that part is what tells you whether you have a 3.55, 3.55LS, 3.73, 3.73LS, or 4.10 (heavy duty only) gearset
5.4 3v motor = 9.75 axle
5.4 3v motor with Heavy Duty package = 10.25 axle (7 lug)
what does your door sticker say in the axle part? that part is what tells you whether you have a 3.55, 3.55LS, 3.73, 3.73LS, or 4.10 (heavy duty only) gearset
MMNC (SS)(Ret)
Joined: Mar 2004
Posts: 11,606
Likes: 151
From: SE Georgia
not exactly goracer
some XLT's have 3.73...but the majority are 3.55. and not all FX4 are 3.73...if you bought a FX4 Lux with 20's, it was supposed to have 3.55 gears.
the only 100% factor is the axle size. after that, you must look-up the door sticker tag for the gearset
some XLT's have 3.73...but the majority are 3.55. and not all FX4 are 3.73...if you bought a FX4 Lux with 20's, it was supposed to have 3.55 gears.
the only 100% factor is the axle size. after that, you must look-up the door sticker tag for the gearset
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New User
Joined: Nov 2006
Posts: 2
Likes: 0
From: Western NY
Thank you for the info It turned out to be an 8.8 with 3.73 now could anyone tell me if 2008 axle shaft will fit into a 2001 f150 rear end . Other then the 5 lug to six lug. I know where I can get a new rear end rotor to rotor from a 2001 f150 from a closed dealership. would need to change axles for the six lug, or did they change the bearing size. Thanks "Tank"
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