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  • #16
    You're gonna have to get your gaskets from (maybe) Stude parts vendors OR one of the places that specializes in vintage auto tranny parts (yes, there are such places). The gaskets NAPA has will be for a TOTALLY different tranny from what you've got.

    What usually happens with that parking pawl is that being as how it's rather fragile, someone will put the tranny in park one time when the car's still, just barely moving. That slight movement is strong enough - with all the weight of the car behind it - to snap that thing right off.[xx(]

    This tranny (properly called The Studebaker Automatic) had alot of safetys built into it as a means of "dummy-proofing" it against novice automatic drivers when automatics were still relatively new. That's why they had an anti-creep system incorporated as well.
    You could shift into Reverse while going down the hiway and the tranny would do nothing but drive right on. It KNEW better than to try and do the stupid trick you'd just told it to![8]

    Miscreant adrift in
    the BerStuda Triangle


    1957 Transtar 1/2ton
    1960 Larkvertible V8
    1958 Provincial wagon
    1953 Commander coupe

    No deceptive flags to prove I'm patriotic - no biblical BS to impress - just ME and Studebakers - as it should be.

    Comment


    • #17
      You're gonna have to get your gaskets from (maybe) Stude parts vendors OR one of the places that specializes in vintage auto tranny parts (yes, there are such places). The gaskets NAPA has will be for a TOTALLY different tranny from what you've got.

      What usually happens with that parking pawl is that being as how it's rather fragile, someone will put the tranny in park one time when the car's still, just barely moving. That slight movement is strong enough - with all the weight of the car behind it - to snap that thing right off.[xx(]

      This tranny (properly called The Studebaker Automatic) had alot of safetys built into it as a means of "dummy-proofing" it against novice automatic drivers when automatics were still relatively new. That's why they had an anti-creep system incorporated as well.
      You could shift into Reverse while going down the hiway and the tranny would do nothing but drive right on. It KNEW better than to try and do the stupid trick you'd just told it to![8]

      Miscreant adrift in
      the BerStuda Triangle


      1957 Transtar 1/2ton
      1960 Larkvertible V8
      1958 Provincial wagon
      1953 Commander coupe

      No deceptive flags to prove I'm patriotic - no biblical BS to impress - just ME and Studebakers - as it should be.

      Comment


      • #18
        Biggs mentioned just one of many ways the pawl gets broken off, ie accidental engagement while in motion. Biggs also mentioned the "dummy-proofing" they built into the "Studebaker Automatic" (it's proper name, since Stude had a huge say in how it was designed and built). I thought I'd put the two together and mention that there is a "dummy-proof" mechanism to prevent the parking pawl from being engaged while the car is moving. However, it is fed off the rear pump which means it only works at 15+ mph, but sadly, even at 10 or less if you shift into Park, the 3,000 lbs of car weight plus the speed of the car will snap that pawl right off. What happens is that the rear pump is driven off the output shaft which means if the car moves, then the rear pump builds pressure. So you can see the logic: when the tranny feels rear pump pressure, it knows that the car is moving -pretty ingenious 58 years ago when there were no speed sensors. This pressure is then funneled to the parking pawl piston which moves and blocks the pawl from engaging.


        Best Regards,
        Eric West
        "The Speedster Kid"
        Sunny Northern California
        Where the roads don't freeze over and the heat doesn't kill you.
        And an open road is yours to have -only during non-commute rush hours 9am-4pm and 7pm to 7am (Ha, ha, ha)
        55 Speedster "Lemon/Lime" (Beautiful)
        55 President State Sedan (Rusty original, but runs great and reliable)
        Best Regards,
        Eric West
        "The Speedster Kid"
        Sunny Northern California
        Where the roads don't freeze over and the heat doesn't kill you.
        And an open road is yours to have -only during non-commute rush hours 9am-4pm and 7pm to 7am (Ha, ha, ha)
        55 Speedster "Lemon/Lime" (Beautiful)
        55 President State Sedan (Rusty original, but runs great and reliable)

        Comment


        • #19
          Biggs mentioned just one of many ways the pawl gets broken off, ie accidental engagement while in motion. Biggs also mentioned the "dummy-proofing" they built into the "Studebaker Automatic" (it's proper name, since Stude had a huge say in how it was designed and built). I thought I'd put the two together and mention that there is a "dummy-proof" mechanism to prevent the parking pawl from being engaged while the car is moving. However, it is fed off the rear pump which means it only works at 15+ mph, but sadly, even at 10 or less if you shift into Park, the 3,000 lbs of car weight plus the speed of the car will snap that pawl right off. What happens is that the rear pump is driven off the output shaft which means if the car moves, then the rear pump builds pressure. So you can see the logic: when the tranny feels rear pump pressure, it knows that the car is moving -pretty ingenious 58 years ago when there were no speed sensors. This pressure is then funneled to the parking pawl piston which moves and blocks the pawl from engaging.


          Best Regards,
          Eric West
          "The Speedster Kid"
          Sunny Northern California
          Where the roads don't freeze over and the heat doesn't kill you.
          And an open road is yours to have -only during non-commute rush hours 9am-4pm and 7pm to 7am (Ha, ha, ha)
          55 Speedster "Lemon/Lime" (Beautiful)
          55 President State Sedan (Rusty original, but runs great and reliable)
          Best Regards,
          Eric West
          "The Speedster Kid"
          Sunny Northern California
          Where the roads don't freeze over and the heat doesn't kill you.
          And an open road is yours to have -only during non-commute rush hours 9am-4pm and 7pm to 7am (Ha, ha, ha)
          55 Speedster "Lemon/Lime" (Beautiful)
          55 President State Sedan (Rusty original, but runs great and reliable)

          Comment

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