Parts for Dana-Spicer Model 50 IFS Front Axles in 1980-1982 Ford F-250, F-350 4x4 Trucks
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Axle Identification
Ford was the only vehicle manufacturer to use Dana Twin Traction Beam® Independent Front Suspension Axles which can be found on 1980-1997 model year Ford 4x4s. The Twin Traction Beam® IFS Axle line includes the coil spring Models 28 and 35 found in Bronco II, Explorers and Ranger pickups, the Model 44 which was used in fill size Broncos, F-150 (coil springs), and light duty F-250 pickups (leaf springs), and the leaf sprung 4500 to 4600 pound rated Model 50IFS axle in heavy GVW F-250 and 1980-1985.5 F-350 trucks. Link to Our Ford Web Page Index
Hub Size: Ford used both Dana 44 and Dana 50 IFS Twin Traction Beam® Front Axles in F-250 trucks. The easiest way to tell them apart is by measuring the diameter of the wheel hub or locking hub. Dana 44 axles have hubs that are approximately 3-3/8" in diameter. Dana 50 Hubs are about 4-1/8" in diameter.  
  Right Differential Output Shaft: The major difference between 1980-1983.5 and 1983.5-1997 Ford Dana 50IFS front axles is the way the right differential output shaft is supported and retained. The early axles use a pressed-on taper roller bearing and an external bolt-on retaining flange. Later production axles use a straight roller bearing pressed into the differential housing and the axle shaft is retained by a snap ring inside the differential next to the differential side gear. The early right diff output shafts could be pulled without removing the differential housing from the axle beam with a special slide hammer puller attachment, but seal replacement also requires the bearing be replaced. For later axles, you MUST remove the differential housing from the axle beam to access the snap ring, but once it is out replacing the right seal is quick and easy.  
  Suspension: Leaf spring  
  Knuckle Mounting: Ball Joints  
  Wheel Hub: 1980-1983.5 Ford Model 50 axles have an internally splined hub in which a splined lockout hub assembly would fits into.  
     
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Axle Assemblies and Axle Housings
     
     
     
     
     
     
     
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Axle Shafts
We still have brand new left and right Axle Shaft assemblies in stock for 1980-1983 Ford 4x4s with Dana 50 IFS Front Axle. Production on these shafts ended years ago, so when our current limited inventory is exhausted that will be the end of new assemblies. Our available used axle shaft inventory is also limited due to the Cash for Clunkers program and high scrap prices which has sent a number of 1980-1983 Fords with Dana 50 axles straight to the crusher. Link to Our Ford Web Page Index

QK4773 Left Axle Shaft Assembly for all 1980 to 1982 Ford F-250 and 1983-1985 Ford F-350 4x4 trucks equipped with the Model 50 IFS Twin Traction Beam Front Axle. Assembled in U.S.A. of U.S.A. and Mexico Parts

QK4774 Right Axle Shaft Assembly for all 1980 to 1982 Ford F-250 and 1983-1985 Ford F-350 4x4 trucks equipped with the Model 50 IFS Twin Traction Beam Front Axle. Assembled in U.S.A. of U.S.A. and Mexico Parts
     
     
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Axle Shaft Seals and Seal Kits for Inner Axle Shafts
The original Ford Dana 50IFS Front Axle uses a combination guide and seal for the Left Axle Shaft Seal and a conventional seal sandwiched between the axle support bearing and axle thrust plate on the right side. Link to Our Ford Web Page Index
QU40087 Left Ford Dana 50 IFS Axle Shaft Seal fits all 1983-1997 Ford F-250 and 1983-1985.5 F-350 4x4 trucks with Dana 50 Twin Traction Beam® IFS front axles.
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Axle Shaft Seals and Seal Kits for Outer Axle Shafts

See our Spindle Seal and Bearing Section for Outer Axle Shaft Slingers, Thrust Washers, and Axle/Spindle Grease Seals		 Link to Our Ford Web Page Index
     
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Axle Universal Joints
The Dana 50 IFS axle has 3 axle universal joints, one for the left side and two for the right side. For the Dana 50, we offer QK4874 Greaseable U-joint as an inexpensive alternative to our QU40470 solid cross original equipment, non-greaseable u-joint which is our as our maximum strength option for these axles. QK4874 Greaseable U-joint is a whole lot cheaper compared to QU40470, but there is some strength loss since it is cross-drilled for grease passage. Link to Our Ford Web Page Index
QK4874 Greaseable External Snap Ring Axle Universal Joint for 1980-1983 Ford Dana 50 Front Axles in 4x4 F-250 and F-350 trucks with Dana 50IFS Twin Traction Beam® IFS front axles.
QU40470 Axle Shaft Universal Joint for 1980-1983 Ford Dana 50 Front Axles is an original equipment replacement, factory lubed, non-greaseable, external snap ring u-joint 1980 to 1983 Ford Dana 50 Twin Traction Beam® IFS front axles which were available on F-250 trucks and F-350s.
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Ball Joints
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Brake Parts
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Differential and Pinion Bearings (Individual)
     

QU40002 Outer Pinion Bearing Slinger

Please refer to QU40002 page for more details and ordering information.
     
     
     
     
     
     
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Differential Bearing and Seal Kits
     
     
     
     
     
     
     
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Differential Parts
     

QU40343 Differential Cap Bolt

Please refer to QU40343 page for more details and ordering information.
     
     
     
     
     
     
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Gaskets and Gasket Makers
     
     
     
     
     
     
     
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Hubs and Hub Parts
     
     
     
     
     
     
     
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Manuals and Technical Information
     
     
     
     
     
     
     
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Miscellaneous Parts
     
     
     
     
     
     
     
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Pinion Seals and Pinion Yokes
     
 
     
     
     
     
     
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Ring and Pinion Kits
     
     
     
     
     
     
     
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Small Parts
     

QU40009 Pinion Lock Nut

Please refer to QU40009 page for more details and ordering information.

QU40010 Pinion Washer

Please refer to QU40010 page for more details and ordering information.
     
     
     
     
     
     
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Spindles and Spindle Nuts
     
     
     
     
     
     
     
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Spindle Bearings and Seals
     
     
     
     
     
     
     
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Steering Knuckles
     
     
     
     
     
     
     
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Steering Linkage Parts
     
     
     
     
     
     
     
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Tools
     
     
     
     
     
     
     
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Wheel Bearings and Seals (Individual)
     
     
     
     
     
     
     
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Wheel Bearing and Seal Kits
     
     
     
     
     
     
     
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