How Do I Identfy
Junior User
Joined: Jul 2003
Posts: 83
Likes: 0
From: South Jersey
How Do I Identfy
My axle tag code is "3 08 88 7M19".
I think that means 3.08 gears, but am not sure what the 88 (8.8 in ring gear?) and 7M19 mean. Can anyone help?
I was thinking of changing the gearing to 3.55 or 3.73, and am trying to learn as much as possible about it.
Can I replace the gearset in the housing I have with a Powertrax unit? Or would I be better off swapping out the whole rear for one from another truck?
What would the tag code read on a rear with Limited Slip 3.55 or 3.73?
Thanks!
~Rob
98 F150 4.6 2wd Ext Cab longbed.
I think that means 3.08 gears, but am not sure what the 88 (8.8 in ring gear?) and 7M19 mean. Can anyone help?
I was thinking of changing the gearing to 3.55 or 3.73, and am trying to learn as much as possible about it.
Can I replace the gearset in the housing I have with a Powertrax unit? Or would I be better off swapping out the whole rear for one from another truck?
What would the tag code read on a rear with Limited Slip 3.55 or 3.73?
Thanks!
~Rob
98 F150 4.6 2wd Ext Cab longbed.
Posting Guru
Joined: Feb 2003
Posts: 2,153
Likes: 1
From: Roseburg OR.
How Do I Identfy
The axle tag would seem to indicate a 3.08 ratio open diff 8.8 inch rear end. It seems a little weird though for an f-250. I would think it would have a Dana 60 or the Visteon 10.25?? But then again I've never owned one so ??
3L55 or 3L73
3L55 or 3L73
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Postmaster
Joined: Nov 2001
Posts: 4,742
Likes: 8
From: OK
How Do I Identfy
yyz87-
Your '98 F150 has an 8.8" gear with a 3.08:1 ratio. You can have the ring & pinion changed to a different ratio and, if they have one to fit, install a Powertrax limited slip. Ask around at some of your local axle or 4x4 shops for info and prices. IMO, changing gears is not something the 'average joe' can do right.
Your '98 F150 has an 8.8" gear with a 3.08:1 ratio. You can have the ring & pinion changed to a different ratio and, if they have one to fit, install a Powertrax limited slip. Ask around at some of your local axle or 4x4 shops for info and prices. IMO, changing gears is not something the 'average joe' can do right.
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