Building a Dana 60/pinion offset?

Transmission and Drivetrain Tech

  1. sabre67

    sabre67 FABO Gold Member FABO Gold Member

    Messages:
    638
    Likes Received:
    150
    Joined:
    Jan 9, 2015
    Location:
    British Columbia,Canada
    Local Time:
    1:20 PM
    Hi Im building a Dana for my 71 Duster, on Dr. Diffs site axle calculator it said to choose a 1 3/16 pinion offset(std mopar) or a centered pinion. Is there any advantage to center pinion in tunnel? With a centered pinion both axles would be same length, which would make it easier to carry spare axle. Any Thoughts? Thanks
     
    • Like Like x 1
    • j par

      j par Well-hung Member

      Messages:
      20,038
      Likes Received:
      9848
      Joined:
      Jul 2, 2014
      Location:
      Portland Oregon
      Local Time:
      1:20 PM
      The entire Drive drivetrain is offset. Trust me you won't need a spare...
       
      • Agree Agree x 3
      • j par

        j par Well-hung Member

        Messages:
        20,038
        Likes Received:
        9848
        Joined:
        Jul 2, 2014
        Location:
        Portland Oregon
        Local Time:
        1:20 PM
        20151014_095506-2.jpg 20151014_104921.jpg
        you can see where I twisted the factory axles but it was actually the Caps that hold the ring gear on the 8 3/4 that blew... LOL
        That's why I went to the dana so none of the stuff would happen again... 20160116_111102.jpg
        410 Dana 410 8 3/4...
        Your worries will be over soon...
         
      • Dana67Dart

        Dana67Dart Like a fine wine, only getting better with age! FABO Gold Member

        Messages:
        3,289
        Likes Received:
        1854
        Joined:
        Jul 16, 2017
        Location:
        Northern Colorado
        Local Time:
        2:20 PM
        IIRC a centered pinion would result in unequal length axles. Ford 9 inch are centered and each axle is different. Mopar pinion is not centered an each axle is same length.
         
      • yellow rose

        yellow rose Doctor of Thinkology.

        Messages:
        19,970
        Likes Received:
        16073
        Joined:
        Jun 19, 2015
        Location:
        Living on the razors edge
        Local Time:
        1:20 PM
      • Malex

        Malex Well-Known Member

        Messages:
        226
        Likes Received:
        565
        Joined:
        Apr 22, 2016
        Location:
        Canada
        Local Time:
        3:20 PM
        In both of my cars I run equal length axles. It comes down to choice.

        A body
        IMG_1812.jpg
        IMG_1454.jpg

        B body
        IMG_0711.jpg
        IMG_4584.JPG
         
        • Like Like x 3
        • j par

          j par Well-hung Member

          Messages:
          20,038
          Likes Received:
          9848
          Joined:
          Jul 2, 2014
          Location:
          Portland Oregon
          Local Time:
          1:20 PM
          Sold it.. probably not too long after that picture years ago..
           
        • sabre67

          sabre67 FABO Gold Member FABO Gold Member

          Messages:
          638
          Likes Received:
          150
          Joined:
          Jan 9, 2015
          Location:
          British Columbia,Canada
          Local Time:
          1:20 PM
          I ordered a set of axles from Cass before for a Dana housing on a different car to stock A body specs and the 2 axles are different length on that set. that is why I asked the question
           
          • Like Like x 1
          • brian6pac

            brian6pac Well-Known Member

            Messages:
            4,313
            Likes Received:
            2836
            Joined:
            Nov 15, 2016
            Location:
            N.E.Ohio
            Local Time:
            4:20 PM
            My Dana has equal length 35 spline axles.
             
          • sabre67

            sabre67 FABO Gold Member FABO Gold Member

            Messages:
            638
            Likes Received:
            150
            Joined:
            Jan 9, 2015
            Location:
            British Columbia,Canada
            Local Time:
            1:20 PM
            Ya Im going to phone Cass to make sure I get what I need the first time. Thanks for your replies:thumbsup::welcome:
             
            • Agree Agree x 1
            • j par

              j par Well-hung Member

              Messages:
              20,038
              Likes Received:
              9848
              Joined:
              Jul 2, 2014
              Location:
              Portland Oregon
              Local Time:
              1:20 PM
              Oops
              That's what I did..
               
            • Locomotion

              Locomotion Well-Known Member

              Messages:
              2,828
              Likes Received:
              366
              Joined:
              May 31, 2004
              Location:
              Florida
              Local Time:
              4:20 PM
              From what I've seen, 8 3/4" rear with factory dimensions has equal length axles. Dana 60 axles are a different length by 1".
               
              • Agree Agree x 1
              • DoctorDiff

                DoctorDiff Well-Known Member

                Messages:
                243
                Likes Received:
                135
                Joined:
                Sep 30, 2012
                Location:
                Polson, MT
                Local Time:
                2:20 PM
                A Dana 60 built with equal length tubes and axles, yields a 1/2" pinion offset.

                If you want to the driveshaft centered in the tunnel, build the housing to the OEM Mopar specs (1 3/16" pinion offset). The driver side tube and axle will be 1 3/8" longer than the passenger side.
                 
                • Thanks! Thanks! x 3
                • Agree Agree x 1
                • sabre67

                  sabre67 FABO Gold Member FABO Gold Member

                  Messages:
                  638
                  Likes Received:
                  150
                  Joined:
                  Jan 9, 2015
                  Location:
                  British Columbia,Canada
                  Local Time:
                  1:20 PM
                  yes thanks Cass thats what i got from your site:thankyou:
                   
                • mopardude318

                  mopardude318 Well-Known Member

                  Messages:
                  9,659
                  Likes Received:
                  807
                  Joined:
                  Jan 7, 2005
                  Location:
                  Gilroy, Ca
                  Local Time:
                  1:20 PM
                • Malex

                  Malex Well-Known Member

                  Messages:
                  226
                  Likes Received:
                  565
                  Joined:
                  Apr 22, 2016
                  Location:
                  Canada
                  Local Time:
                  3:20 PM
                  ---
                  My B body car came with the narrowed Dana with equal length axles, works great, so when I built the Dana for the Dart I went with equal length axles again.
                   
                1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                  By continuing to use this site, you are consenting to our use of cookies.