how do i tell ?
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
Are you asking for the differential ratio, or the type of axle you have?
If you are looking for the ratio, you just need to open the inspection cover and count the teeth on the ring and pinion.
While i generally agree with axle codes on the door, they will only tell you what the truck had under it when the track was made. Try that with a 20 or 30 year old truck, and chances are that you will end up with incorrect information.
If you are looking for axle identification, you can post some pics (in your gallery) and you will obtain some feedback, or you can use the BOM located on the axle(s) to identify.
This should help with BOM location;
http://www.nationwideparts.com/differentials.htm
there is also an easy way to tell the difference froma D60 that you probably have in the back, and the D44 that it looks like you have up front.
The dana 60 inspection cover requires a 9/16" wrench for cover bolt removal, and the D44 requires a 1/2" wrench. Not tomention the 60 is much larger than a 44, but often difficult to tell if you have no reference.
If you are looking for the ratio, you just need to open the inspection cover and count the teeth on the ring and pinion.
While i generally agree with axle codes on the door, they will only tell you what the truck had under it when the track was made. Try that with a 20 or 30 year old truck, and chances are that you will end up with incorrect information.
If you are looking for axle identification, you can post some pics (in your gallery) and you will obtain some feedback, or you can use the BOM located on the axle(s) to identify.
This should help with BOM location;
http://www.nationwideparts.com/differentials.htm
there is also an easy way to tell the difference froma D60 that you probably have in the back, and the D44 that it looks like you have up front.
The dana 60 inspection cover requires a 9/16" wrench for cover bolt removal, and the D44 requires a 1/2" wrench. Not tomention the 60 is much larger than a 44, but often difficult to tell if you have no reference.
Posting Guru
Joined: Nov 2004
Posts: 2,155
Likes: 1
From: sunny fla sometimes windy
Jack up the truck, mark the tire, mark the pinion, turn tire and count the number of
rotations the pinion spins. 3 and a half turns = 3.55 and say 4 and a couple degrees
would be 4.10:1 of course it needs to be in neutral and you had better block the wheels!!
rotations the pinion spins. 3 and a half turns = 3.55 and say 4 and a couple degrees
would be 4.10:1 of course it needs to be in neutral and you had better block the wheels!!
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Posting Guru
Joined: Feb 2008
Posts: 2,184
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From: dayton ohio
thanks guys, since this a serious frankenstien i will pull off the covers and see. i was mostly wondering if they were open or limited slip or what? judging from some of the things i have found out so far it is hard to tell. but i definatly got my work cut out for me to be a daily driver for now.
Senior User
Joined: Jul 2007
Posts: 265
Likes: 0
From: Montreal, Canada
Originally Posted by fdude64
i was mostly wondering if they were open or limited slip or what?
https://www.ford-trucks.com/article/...de_Chart_.html
Itch
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Posting Guru
Joined: Feb 2008
Posts: 2,184
Likes: 0
From: dayton ohio
that would be too easy for there to be a door sticker that matched the truck or even a tag on the firewall or even tags on the rearends and transfercase. i got a serious hands on have to go through everything project. cant wait to get started.just wish i was a young fellow again.lol
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