Source for rebuild kits for Clamshell tailgate and glass motors?

Discussion in 'General Station Wagon Discussions' started by ClamWagon, Feb 25, 2023.

  1. ClamWagon

    ClamWagon Member

    Joined:
    Feb 19, 2023
    Messages:
    8
    Likes Received:
    1
    Trophy Points:
    5
    It’s few and far between when I stumble across random videos or hear of someone having a rear tailgate/glass motor rebuilt for their clamshell tailgates but cannot find a good source for new units or rebuild kits. I see from a 14 year old thread here that you can use a 78 K5 Blazer rear window motor. Does anyone know if that would also operate the tailgate? My rear window has never worked for me and stopped working on my great Grandma (original owner) back when the car was almost new. Would love to get window to work so I can utilize the full affect of the clam.
     

    Attached Files:

  2. KevinVarnes

    KevinVarnes Well-Known Member

    Joined:
    Apr 11, 2010
    Messages:
    3,037
    Likes Received:
    314
    Trophy Points:
    195
    Wagon Garage:
    1
    Location:
    Grand Rapids, MI
    Are you sure the motors are actually bad? Are they getting power? I would start with the switches and work my way back from there.
     
    Timmayy likes this.
  3. Silvertwinkiehobo

    Silvertwinkiehobo "Everything that breaks starts with 'F.'"

    Joined:
    Apr 21, 2014
    Messages:
    14,928
    Likes Received:
    2,957
    Trophy Points:
    710
    Location:
    New Braunfels, TX
    That motor, like Ford's window motors, looks the same as the wiper drive motor. So if you don't find anything under "window motor," look under "windshield wiper motor."
     
  4. ClamWagon

    ClamWagon Member

    Joined:
    Feb 19, 2023
    Messages:
    8
    Likes Received:
    1
    Trophy Points:
    5
    @KevinVarnes
    From the dash switch, I can hear glass motor click, but not open. The tailgate up is a two person task with assistance

    @Silvertwinkiehobo
    Interesting, ill look into that
     
  5. elB

    elB Well-Known Member

    Joined:
    Dec 2, 2014
    Messages:
    1,575
    Likes Received:
    293
    Trophy Points:
    185
    Wagon Garage:
    3
    Location:
    NorCal
    The motor itself looks like it's the same as any other GM power window motor: tailgates, door glass, etc. The head that attaches to the output looks to be where it's different, and likely interchangeable.

    But definitely try a good known power source as close to the motor as possible. The dash switches and wiring behind the dash on these cars are notorious for failing due to moisture problems - the 12V bus that feeds all of the accessories and power windows is set up on the body metal right behind the driver's side kick panel and dash pad and a leaky windshield will drip water right onto it and on to the relays that the switches operate.
     
  6. Krash Kadillak

    Krash Kadillak Well-Known Member

    Joined:
    Feb 14, 2008
    Messages:
    20,707
    Likes Received:
    1,882
    Trophy Points:
    798
    Wagon Garage:
    1
    Location:
    Springfield, Oregon
    I don't remember which of our members did it, but some years back (maybe around 2010.....?) somebody posted an entire thread series on how to clean / overhaul your clamshell tailgate. They covered both the top and bottom. I've attempted a couple of searches here, but come up empty. Maybe another member has some additional info on the thread series to help find it......
     
  7. KevinVarnes

    KevinVarnes Well-Known Member

    Joined:
    Apr 11, 2010
    Messages:
    3,037
    Likes Received:
    314
    Trophy Points:
    195
    Wagon Garage:
    1
    Location:
    Grand Rapids, MI

Share This Page