D44 or D50 front axle????
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Junior User
Joined: Mar 2003
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From: ohio
D44 or D50 front axle????
Okay here it is. I am really wondering what I might have in this 85 F-250 4X4 extended cab truck. I am curently in the middle of replacing a lot of parts on the front drive axle of my truck. I replaced one brake rotor all three u-joints and obviously all related seals and gaskets. Here is the question that I have. Is there or has been a joining of the D44 and D50 front axle. The grease seals on the rotor are a part #that matches to a 50 axle. Plus the hubs just about fill the holes in the wheels. When I went to Napa yesterday to buy the front diff gasket (this is after I figured out from all of your help here that I needed to remove the front diff to get the right axle out of it) I asked for a D50 gasket. Took it home and its way to big. The front diff gasket ended up being a D44 part #. What is this? ever heard of this or is this common. Just curious.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Welcome to the confusing world of Ford 4WD front axles. Is it a Dana 44, a Dana 50 or a Dana 60? That depends on the GVWR: under 8500 lbs, or over 8500 lbs. It also depends on the type of hubs and the ratio. There are 10 parts lists for under 8500 lbs, and 3 parts lists for over 8500 lbs.
What do you have? Good question. Did you find an ID tag on the axle? Besides being bolted to one of the bolts that holds the removable cover on (where it usually disappears), it may be on the right axle tube adjacent to the cover. This tag is approx 2" long by 1/2" wide, and is held to the tube with two bolts. The code could be either all numbers, beginning with 6 (6xxxxx-x) or a Ford engineering number like: E5TA-AA.
I tried to look up the parts you have questions on, but without that tag number...I can't help you.
What do you have? Good question. Did you find an ID tag on the axle? Besides being bolted to one of the bolts that holds the removable cover on (where it usually disappears), it may be on the right axle tube adjacent to the cover. This tag is approx 2" long by 1/2" wide, and is held to the tube with two bolts. The code could be either all numbers, beginning with 6 (6xxxxx-x) or a Ford engineering number like: E5TA-AA.
I tried to look up the parts you have questions on, but without that tag number...I can't help you.
Last edited by NumberDummy; Nov 1, 2007 at 02:59 AM.
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Junior User
Joined: Mar 2003
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From: ohio
Ido have the tag but it is mostly unreadable. I did bolt it back on right where I found it just in case for the future. I was talking with the snap-on dealer that came in tonight to work and I was asking him about these trucks. He just laughed and said that when he was working at the Ford dealership in the mid eighties they didn't have a clue what they were working on themselves until they got it apart either. He told me that a mixture of the D50/60 hubs were routinely mated to a D-44 differential. Just like you said it depended upon heavy duty(high gvw) or light duty(lower gvw). Neat stuff.
Lead Driver
Joined: Dec 2002
Posts: 5,491
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From: Kuna ID
Originally Posted by andym
It *should* have a Dana 50, being an extended cab. But it sounds like Ford screwed you over by giving you a 44 differential and 50/60 hubs.
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