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How to tell a TT rear axle?

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  • How to tell a TT rear axle?

    On a model 44, without pulling the differential cover, is there any way to tell if the rear axle is a TT?

    Thanks

  • #2
    Are you saying that yours has no 45B or 45C tag under a cover bolt on the right side of cover?

    StudeRich
    Studebakers Northwest
    Ferndale, WA
    StudeRich
    Second Generation Stude Driver,
    Proud '54 Starliner Owner

    Comment


    • #3
      Two ways.
      (a) Hard way. Jack up car. Put on jackstands. Rotate one wheel.
      If the other rotates the same direction. TT.....
      If it rotates the other direction... Open.

      (b) Easy way. Pull diff cover fill plug.
      Stick your finger in. If it goes in to the first knuckle. TT.
      If it goes in to the second knuckle. Open...

      (The TT carrier case is big enough to pretty much fill in the housing and it rides closer to the cover than an open carrier case)

      Hope the info helps.
      Jeff[8D]



      quote:Originally posted by 54-61-62

      On a model 44, without pulling the differential cover, is there any way to tell if the rear axle is a TT?

      Thanks
      HTIH (Hope The Info Helps)

      Jeff


      Get your facts first, and then you can distort them as much as you please. Mark Twain



      Note: SDC# 070190 (and earlier...)

      Comment


      • #4
        Same as any other posi.

        Jack up the rear of the car, turn one rear tire...the other tire will spin the SAME direction as the one you are turning if it's got a positraction carrier.

        If the opposite tire spins the "opposite" direction, it's an open carrier.

        Now.....it COULD have positraction and be worn out...and will act like an open rear end. SO...ultimatly...your best bet is to remove the cover to "actually" see what's in there.
        Plus you'll be doing the axle a favor by renewing the axle with fresh fluid.

        Mike

        Comment


        • #5
          3rd way.
          put transmission in low, increase engine speed to high RPM, dump clutch. Do you have both wheels spinning or not?
          Russ

          Russ Shop Foreman "Rusty Nut Garage"
          57 SH (project)
          60 Lark VIII 2dr sd (driver)

          Russ Shop Foreman \"Rusty Nut Garage\"
          53 2R6 289 5SpdOD (driver)
          57 SH (project)
          60 Lark VIII 2dr sd (driver)

          Comment


          • #6
            I have several loose model 44 rear axles without tags....they are not in a car and I really don't want to pull the covers off them all to figure out which ones are open or TT....

            Comment


            • #7
              quote:Originally posted by 54-61-62

              I have several loose model 44 rear axles without tags....they are not in a car and I really don't want to pull the covers off them all to figure out which ones are open or TT....

              Use Jeff's method (b) - look in and reach into case to determine if there is a TT unit taking up space in there.

              Gary L.
              Wappinger, NY

              1959 DeLuxe pickup (restomod)
              Gary L.
              Wappinger, NY

              SDC member since 1968
              Studebaker enthusiast much longer

              Comment


              • #8
                quote:Originally posted by 54-61-62

                I have several loose model 44 rear axles without tags....they are not in a car and I really don't want to pull the covers off them all to figure out which ones are open or TT....

                As Jeff said, it's really quite easy to see if it is TT. The carrier case is very close to the inside of the differential and is easily visible.

                Tim K.
                '64 R2 GT Hawk
                Tim K.
                \'64 R2 GT Hawk

                Comment


                • #9
                  So are we talking about the oil fill hole in the pressed cover or the drain plug in the bottom of the cast case?

                  Comment


                  • #10
                    If there not mounted in a vehicle I would think it would be easy to spin one side and see which way the other side turns?!?

                    Wayen K.
                    Libby, MT
                    61 Hawk (Project)

                    Comment


                    • #11
                      quote:Pull diff cover drain plug.
                      I think he means fill plug, as the cover has no drain plug.

                      I like Russ's method. It only requires footwork and good tires. Is power braking a lost art? Not on Sunday afternoon!
                      "All attempts to 'rise above the issue' are simply an excuse to avoid it profitably." --Dick Gregory

                      Brad Johnson, SDC since 1975, ASC since 1990
                      Pine Grove Mills, Pa.
                      sigpic'33 Rockne 10, '51 Commander Starlight, '53 Commander Starlight "Désirée"

                      Comment


                      • #12
                        I did mean the fill plug..
                        Thanks for the correction... I did fix the post...
                        Jeff[8D]


                        quote:Originally posted by rockne10

                        quote:Pull diff cover drain plug.
                        I think he means fill plug, as the cover has no drain plug.

                        I like Russ's method. It only requires footwork and good tires. Is power braking a lost art? Not on Sunday afternoon!
                        HTIH (Hope The Info Helps)

                        Jeff


                        Get your facts first, and then you can distort them as much as you please. Mark Twain



                        Note: SDC# 070190 (and earlier...)

                        Comment


                        • #13
                          How about: Have a helper stick their finger in the fill hole while you dump the clutch?

                          Lark Parker aka Trim Trader
                          sigpic
                          Lark Parker --Just an innocent possum strolling down life's highway.

                          Comment


                          • #14
                            quote:Originally posted by Lark Parker

                            How about: Have a helper stick their finger in the fill hole while you dump the clutch?

                            Lark Parker aka Trim Trader
                            Awww.....that was mean. But I'm smilling!

                            Tim K.
                            '64 R2 GT Hawk
                            Tim K.
                            \'64 R2 GT Hawk

                            Comment


                            • #15
                              Who told you that? Stumpy?
                              Jeff[8D]



                              quote:Originally posted by Lark Parker

                              How about: Have a helper stick their finger in the fill hole while you dump the clutch?
                              HTIH (Hope The Info Helps)

                              Jeff


                              Get your facts first, and then you can distort them as much as you please. Mark Twain



                              Note: SDC# 070190 (and earlier...)

                              Comment

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