1964 dart idler arm question

Suspension, Steering and Chassis

  1. Naplm00

    Naplm00 Well-Known Member

    Messages:
    233
    Likes Received:
    50
    Joined:
    May 20, 2019
    Location:
    Bay
    Local Time:
    6:02 AM
    I ordered a centric 620.63003 idler arm for my car since that's what rockauto called for.

    after disassembling the front end I found that my idler arm is totally different.

    I also can't seem to figure out what type of idler arm is have. I do know that on the chassis there is nowhere for a taper on the car side for a double taper one to fit. On the car side I definitely need the style that uses a bolt and a bushing.

    Can somebody help me identify what I have on here so I can buy a replacement?

    What I need looks like this one : https://m.autozone.com/suspension-s...arm-fa1012/dodge/dart/202952_148976_2793?aqs=

    But the taper pin is inverted.

    IMG_20190708_185315.jpg

    IMG_20190708_185333.jpg
     
  2. Naplm00

    Naplm00 Well-Known Member

    Messages:
    233
    Likes Received:
    50
    Joined:
    May 20, 2019
    Location:
    Bay
    Local Time:
    6:02 AM
    Here is the hole in the k member. I put the rockauto arm up there and it fit but seemed loose

    IMG_20190708_195532.jpg

    IMG_20190708_195538.jpg
     
  3. Naplm00

    Naplm00 Well-Known Member

    Messages:
    233
    Likes Received:
    50
    Joined:
    May 20, 2019
    Location:
    Bay
    Local Time:
    6:02 AM
    Well I cleaned it up and did a little bit more digging. It really didn't seem to me that this had any taper to it whatsoever. I was wrong.

    I inserted a ball joint that had a similar taper to the new rock auto idler arm, And it fit perfectly.

    I'm thinking that somebody put on the wrong idler arm who knows from what. And at the RockAuto arm is probably correct. I took a better picture after I cleaned it up.

    Any input ?

    IMG_20190708_202905.jpg
     
  4. Dana67Dart

    Dana67Dart Like a fine wine, only getting better with age! FABO Gold Member

    Messages:
    5,561
    Likes Received:
    3561
    Joined:
    Jul 16, 2017
    Location:
    Northern Colorado
    Local Time:
    7:02 AM
    67 uses similer tapered at both ends idler arm, 68 up uses thru bolt like you took off.

    I would measure both sides of the taper on the car to be sure it really Is tapered.

    One more thing. The geometry of the idler arm should be very much the same as the steering arm
     
  5. Naplm00

    Naplm00 Well-Known Member

    Messages:
    233
    Likes Received:
    50
    Joined:
    May 20, 2019
    Location:
    Bay
    Local Time:
    6:02 AM
    Doesn't the through bolt style use this type of k member ?

    It's definitely tapered , the ball joint was a perfect fit.

    I have a pitman arm on the way
    https://www.engine-swaps.com/Photos4Website/TechInfoPics/KMember_Photos/KMember AOB.jpg
     
  6. RustyRatRod

    RustyRatRod Lemmie see your b00bs. FABO Gold Member

    Messages:
    67,582
    Likes Received:
    41756
    Joined:
    Jun 7, 2010
    Location:
    Georgia
    Local Time:
    9:02 AM
    You ordered the correct arm. You had the incorrect arm on the car.
     
    • Agree Agree x 1
    • Naplm00

      Naplm00 Well-Known Member

      Messages:
      233
      Likes Received:
      50
      Joined:
      May 20, 2019
      Location:
      Bay
      Local Time:
      6:02 AM
      Great thank you. I had my passenger side wheel (The side with the idler arm) rubbing on my front fender when the driver side was perfectly okay. Hopefully this was the culprit
       
    • Dana67Dart

      Dana67Dart Like a fine wine, only getting better with age! FABO Gold Member

      Messages:
      5,561
      Likes Received:
      3561
      Joined:
      Jul 16, 2017
      Location:
      Northern Colorado
      Local Time:
      7:02 AM
      Thru bolt style has a different bracket. No taper. 1/2 is above the idler 1/2 is below.
      Look at lower right of image.... This is a 68 up k member. The idler you pulled off might fit it but not your car.
      s-l400 (1).jpg
       
    • Naplm00

      Naplm00 Well-Known Member

      Messages:
      233
      Likes Received:
      50
      Joined:
      May 20, 2019
      Location:
      Bay
      Local Time:
      6:02 AM
      Yea I posted a pic of the other type , all figured out now ! Thanks !
       
      • Agree Agree x 1
      • C130 Chief

        C130 Chief Mechanical Genius

        Messages:
        3,076
        Likes Received:
        233
        Joined:
        Nov 23, 2005
        Location:
        Boise, ID
        Local Time:
        7:02 AM
        So you want the center link to be parallel to the ground in the greater scheme of things.
         
      1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
        By continuing to use this site, you are consenting to our use of cookies.