diff id
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Senior User
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From: brooks a.b.
diff id
i have a 1973/12 month build date f250 i am trying to id the front and rear
diffs any good sites to help me out i believe the front to be a 44 and rear to be
70 but am unsure
diffs any good sites to help me out i believe the front to be a 44 and rear to be
70 but am unsure
Post Fiend
Joined: Jan 2003
Posts: 10,323
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From: Montana Territory
Should be a Dana 44 front and 60 rear...
You can tell on the front if it has King Pins its a Dana 60, if it has Ball Joints its a Dana 44...
A 60 and 70 rear are undistinguishable, a 70U rear is a high pinion rear with a goofy looking housing.
Somebody here should be able to post a VIN decoder link, I lost my hard drive a month or so ago and lost all that neato stuff.
Welcome to FTE
You can tell on the front if it has King Pins its a Dana 60, if it has Ball Joints its a Dana 44...
A 60 and 70 rear are undistinguishable, a 70U rear is a high pinion rear with a goofy looking housing.
Somebody here should be able to post a VIN decoder link, I lost my hard drive a month or so ago and lost all that neato stuff.
Welcome to FTE
Senior User
Joined: Nov 2003
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A '73 F250 4wd should have a Dana 60 rear and either a Dana 44-6CF or 44-6CF-HD front axle. Both front axles had closed knuckles and 12" drum brakes, the primary difference was in the size of the outer components. The HD axle had about a 3550lb GAWR, the standard axle had about a 3300lb GAWR. You can tell the difference by looking at the size of the lockout hubs - the standard axle had a tapered hub with a 1/2 ton sized lockout, the hubs on the HD axle weren't tapered and have huge lockouts. You can also count the number of bolts holding the wiper seals to the closed-knuckle ball on back side of each hub, wiper seals on the HD axles will have 12 bolts, the standard axles have 8 (I think).
I don't think that a true Dana 60 front end was a regularly available option in '73.
Hope this helps.
I don't think that a true Dana 60 front end was a regularly available option in '73.
Hope this helps.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
What they said. If your also looking to find out the gear ratio, and if it has a track lock(limited slip), then check the tag of the bolt covers and show the numbers on here for some help with that.
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