TH400: Shift Linkage & Seal Installation

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  • Опубліковано 10 лют 2025

КОМЕНТАРІ • 29

  • @briankelca1231
    @briankelca1231 Рік тому +1

    My mechanic must be deaf! He did not hear the parking guide scream out “Wrong” and put it in backwards. For years I have had to pray my emergency brake would work or find a flat area to park, otherwise Park would not hold. Thanks to your video, I pulled the trans pan, noticed the guide was backwards, corrected it and now the car holds Park on a hill without the emergency brake. Thank you so, so much PS….I still will use the emergency brake on a hill.

  • @WOODSIDEtheGUY
    @WOODSIDEtheGUY 3 роки тому +3

    Shawns insane knowledge will pretty much prevent you from getting screwed but some random transmission shop.. just gotta listen to this guy spill his experience

  • @BigFun4Life
    @BigFun4Life 3 роки тому +1

    Thanks for sharing your knowledge and day to day shop work.Always look forward to your vids…

  • @skywaves5175
    @skywaves5175 3 роки тому +1

    This video is helpful for getting my linkage done. Thanks again.

  • @wyatttate945
    @wyatttate945 8 днів тому

    Question boss why’d you need two nails one for both rooster comb gears?

  • @3Repete
    @3Repete Рік тому +1

    Didn't show removing and replacing the seal. But I did get some insight on my transmission.

  • @tim1743
    @tim1743 3 роки тому +1

    Thanks Shawn

  • @jordansmith8467
    @jordansmith8467 2 роки тому +1

    Outstanding info good sir

  • @jordansmith8467
    @jordansmith8467 2 роки тому +1

    Outstanding comentntation as ususal

  • @erickandler8569
    @erickandler8569 4 місяці тому

    So if the parking pawl is installed correctly what else could go wrong with the transmission not wanting to engage in park??

  • @ThomasPyk
    @ThomasPyk Рік тому

    Thanks for your knowledge .

  • @wyatttate945
    @wyatttate945 8 днів тому

    Also where’d you get those nails?

  • @ericvitelli7113
    @ericvitelli7113 Рік тому +1

    Hi Shawn , I recently replaced the neutral safety switch on my 67 Camaro with the console shift. I thought I attached the slider on the flat part of shifter all the way forward but the reverse light comes on in neutral. When I attached new switch it seemed to move forward more than the beauty plate for console would allow- causing the issue?? How do I adjust this/ fix it? Thanks

    • @mountainsgarage
      @mountainsgarage  Рік тому

      There is a retro fit switch that allows more adjustments for use with a three or four speed automatic. You didn’t mention what transmission.

    • @ericvitelli7113
      @ericvitelli7113 Рік тому

      Sorry , A TH400@@mountainsgarage

  • @jeepgodfabrication9970
    @jeepgodfabrication9970 3 роки тому +1

    Fluid levels have me thinking. In my rock crawlers, I usually have to run a couple quarts over full. Otherwise when the vehicle is verticle standing on the rear bumper it starves the pump and won’t move. I wonder if it’s the converter giving up the ability to turn the input shaft or the forward clutch not able to engage

    • @trunkmonkey9417
      @trunkmonkey9417 3 роки тому +1

      It would be the pump failing to keep the converter charged.
      Suction of fluid is taken up and pressure built against the pressure regulator valve which must maintain a pressure balance for correct regulation, of converter charge and then correct line pressure to supply lube circuit/clutch drum and accumulators. (short version and leaving some details out for brevity)
      When you are vertical, pickup supply is starved and the pump cavitates and the pressure relieve valve cannot be in balance, and converter charge is lost, as well as line pressure.
      I am a horizontal, straight line, go fast transmission user, so I dod not know if there is a way to keep continual supply in your sport. But there is ingenuity and perhaps a market for someone.

  • @idi0televisi0n
    @idi0televisi0n Рік тому +1

    Hey Shawn, i have recently put a 4x4 turbo 400 used out of an AM General Humvee into my 1985 Chevrolet K20. Doesn't want to shift into park from the column, only if assisted underneath with a pair of pliers. Ive checked and adjusted the external linkage from the steering column, any ideas? Thanks!

    • @mountainsgarage
      @mountainsgarage  Рік тому

      Hi! Is the outside linkage piece correct for the truck?

  • @hiddenhickoryranch2543
    @hiddenhickoryranch2543 3 роки тому +1

    Thanks, your channel is great!

  • @aidenclark1821
    @aidenclark1821 5 місяців тому

    I need help. I have a family member’s 1980 GMC C15, ingot the engine running good, but I don’t have a shift linkage (from the steering column to the transmission) or a transmission fluid dipstick. The transmission is a TH400, do you know if I can purchase these parts new, or do I just have to keep looking in junkyards and on marketplace?

    • @Altered76
      @Altered76 3 місяці тому

      @aidenclark1821 I know you can get the transmission dipstick and tube. Try Summit Racing or just about any performance parts house. I'm not positive but I think the one Shawn likes is Proform Transmission Dipstick part number 66182. As for the shift rod and associated hard parts you will probably have to wrecking yard those and just get new bushings for it.

  • @bwgkcj
    @bwgkcj 3 роки тому +2

    Is it that way on seal driver to reposition seal slightly out on shaft to a non worn spot

  • @georgediaz2119
    @georgediaz2119 2 роки тому

    Hello, I have a th400 that came out of a humvee and does not have Park. Are you able to point me in the right direction on where to purchase everything I need to install Park gear? Thank you

  • @josenavarro2657
    @josenavarro2657 Рік тому

    Where can I find the nail at

  • @imogenhenry8073
    @imogenhenry8073 3 роки тому +1

    vae.fyi
    magic