which front diff do i have?
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New User
Joined: Jul 2002
Posts: 12
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From: alaska
which front diff do i have?
Hi, i need to know which front differential i have, so i can order a limited slip. My truck is an 82 F-250 4x4, with a 8700 gvw. The tag in the front is barely legible, i can make out 3.54. The vin is 1FTHF26G3CRA25363, and the axle code is D1.Any help would be greatly appreciated.
More Turbo
Joined: Mar 2002
Posts: 508
Likes: 2
From: Easthampton, Ma.
which front diff do i have?
Ford did not use the solid Dana 60 (monobeam) axle on any of their trucks from 80 to 85 1/2, after then it was only used on the F350's.
A simple way to differentiate between the 2 front axles offered for those years is to look at where the hub sticks thru the rim.
If the hub completely fills the hole, it's a Dana 50 IFS.
If the hub is smaller then the center hole, is's a Dana 44 IFS HD
(both of these are 8 lugs, F250 or F350)
Bronco"s and F150's all had Dana 44 IFS (not the HD)
(all of these are 5 lugs)
Now you're going to catch yourself looking at the front axle on every ford truck you see!
Good Luck!
A simple way to differentiate between the 2 front axles offered for those years is to look at where the hub sticks thru the rim.
If the hub completely fills the hole, it's a Dana 50 IFS.
If the hub is smaller then the center hole, is's a Dana 44 IFS HD
(both of these are 8 lugs, F250 or F350)
Bronco"s and F150's all had Dana 44 IFS (not the HD)
(all of these are 5 lugs)
Now you're going to catch yourself looking at the front axle on every ford truck you see!
Good Luck!
Posting Guru
Joined: Aug 2000
Posts: 1,127
Likes: 3
From: (near) Denver USA
which front diff do i have?
In '82, Ford used Dana 50 axles on HD trucks (GVW 8500 lbs. or more). The Dana 44HD axle was used only on "light-duty" F250s (GVW less than 8500 lbs.).
Another comparison you can make to ID the axle is compare the hub extensions with 5-lug trucks (F150/Bronco). If yours is the same size, it's a Dana 44HD, if it's bigger, it's a Dana 50.
Another comparison you can make to ID the axle is compare the hub extensions with 5-lug trucks (F150/Bronco). If yours is the same size, it's a Dana 44HD, if it's bigger, it's a Dana 50.
