Transmission rumblin

Discussion in '1947-1954' started by destryrideagain, Apr 12, 2010.

  1. destryrideagain

    destryrideagain Member

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    Howdy guys, a couple weeks ago every now and then when i was in 1st or 2nd gear with clutch in the transmission would start rumbling. Checked fluid and it was low. Filled it back up and everything ran great for about 2 weeks. Now the rumblin is back more-so than ever and even when i just have the clutch in. Fluid is still full. Any suggestions? Could it be the throwout bearing? Thank you!
     
  2. destryrideagain

    destryrideagain Member

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    anyone? pleaseeeeee
     
  3. Thunder54

    Thunder54 Member

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    Location:
    Port Arthur, TX
    Drivetrain

    If you are running a stock torque tube, I would suggest checking the U joint, and that slap in your torque tube drive shaft. The old brass bushings do wear out. The drive shaft will rumble if U joint or the bushing is worn out.

    Jim:(
     
  4. Kens 50 PU

    Kens 50 PU Member

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    Couple of questions for you. Is it a 3 speed or 4 speed tranny? Describe for us the noise it's making. Normally, a bad throwout bearing will not make a noise until you depress the clutch enough for it to engage the "teeth" of the pressure plate, then it is more of a metal to metal whine than a rumble. Does it shift OK, or is it hard to get in and/or out of gear?
     
  5. destryrideagain

    destryrideagain Member

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    Thanks for the reply guys. Ken, its a 4 on the floor and it is difficult to shift between the 1st and 2nd gears. Sometimes i have to try a couple times to shift into gear. It sounds as if the gears are turning, its low pitched.
     
  6. vwnate1

    vwnate1 Member

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    Tranny Noises

    O.K. drain the tranny into a clean plastic drain pan and loiok for metal sliverz ,shavings , what have you .

    Swish a magnet (small screwdriver head will work) around in it .

    if silver colored stuff sticks to the magnet , you have some work to do , it's cheapest to buy another (good used) takeout tranny . but parts are available , might just be bad bearings .

    Gold/Bronze colored bits in the oil means the snychro hubs are toast .

    If you can nmake it grumble or groan by standing still with the engine running , in gear and the clutch deperessed , this indicates either the throwout bearing *or* the pilot bearing in the middle of the flywheel / crankshaft , this would more account for the difficulty in changing gears...

    it also means the tranny proper is NOT bad .


    Simple work to fix any of these , just heavy labor .
     

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