U-Joint size/part#

Engine, Trans & Driveline

  1. biomedtechguy

    biomedtechguy FBBO Gold Member FBBO Gold Member

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    The answer to this doesn't seem to be as straightforward as I would think.
    I have a V-Code, TrackPak, 440 6bbl, 18 spline 4 speed, Dana 60 equipped 70 Roadrunner.
    I realize that TrackPak = Dana 60, but I am providing as much info as possible.
    What size is the "cross" on the front and rear U-joints, the cap diameters, and the strongest U-joint (Spicer?)
    I'm thinking that should be the same for all cars equipped that way.
    I will measure once I pull the car out, on jackstands, and get my tape, but I am short of time.
    Thanks.
     
  2. 66Satellite47

    66Satellite47 Well-Known Member

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    Very interesting. My guess is 7290 front with a 1310 rear. Let us know.
     
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    • 440+6

      440+6 FBBO Gold Member FBBO Gold Member

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      My v code track pack is 7290 front and back
       
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      • biomedtechguy

        biomedtechguy FBBO Gold Member FBBO Gold Member

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        Summit said 7290 also...
         
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        • Big Bad Dad

          Big Bad Dad Well-Known Member

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          When I was selling parts many moons ago, the Borg Warner catalog usually listed two different size joints for Mopars. 2-1/8" inside yoke span, and 2-5/8" inside yoke span. I have seen big block cars with the small joints. I'm not sure, but I think the Dana cars may have had a different joint than the 8-3/4 equipped cars due to the snap ring location.
           
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