Important!: How To: Fix Yoke Clunk by Clamping Leaf Springs

Discussion in 'Maintenance' started by Khaos, May 6, 2014.

  1. Khaos

    Khaos Bed Dent Club Founder

    Messages:
    20,332
    Most everyone that owns a GM truck knows about the infamous yoke clunk. After putting up with it for the last few months on my extended cab, I decided today that I would fix the issue.

    After doing some research, there seemed to be three ways to go about fixing it: getting the updated nickel yoke from GM, packing the current yoke with grease, or clamp the leaf springs. I chose the third option due to ease of installation and adjustment.

    What you'll need:

    - Leaf Spring Clamp Kit (2 pack) Part# 13-1401A from AutoZone, O' Reilly's, etc. Should be the same in each store. ($15-$20) Located int he towing/trailering section of the store.
    - 19mm deep socket

    Install time:

    - Less than 10 minutes

    Where do the clamps go?

    - The clamps mount approx 6" in front of the rear axle

    What does this accomplish?

    - By clamping the leaf springs it helps to prevent the rear from moving when you are driving, effectively eliminating the "clunk" noise


    Pictures of the clamp kit you'll need:

    [​IMG]

    Installed

    [​IMG]

    Tightened down

    [​IMG]

    Visual distance from rear (estimate, no need to be exact)

    [​IMG]


    And there you have it. This quick fix eliminated that annoying clunk while driving. Hopefully this simple guide can help others that are wondering about this fix.
     
    Last edited: May 6, 2014
  2. slicksierra

    slicksierra Feel some type of way

    Messages:
    5,454
    I can't tell if my RCLB has it. Sometimes if I downshift without rev matching it clunks and if I hammer it in gear after being part throttle it clunks
     
  3. Khaos

    Khaos Bed Dent Club Founder

    Messages:
    20,332
    Don't think that's yoke clunk. My rcsb does the same thing.
     
  4. slicksierra

    slicksierra Feel some type of way

    Messages:
    5,454
    If I revmatch it right it doesn't do it at all
     
  5. marc

    marc WhiteSilvy

    Messages:
    5,306
    lol the infamous clunk got me a $1000 bucks off my 03 when i bought it because me and the guy selling the truck thought is was rear-end :rofl:
     
  6. Khaos

    Khaos Bed Dent Club Founder

    Messages:
    20,332
    Yeah, that's exactly what I DON'T want to happen, hence why I did it :laugh:
     
  7. Ginger

    Ginger Bubbles

    Messages:
    23,839
    does it ride rougher now that the overload if more in use?
     
  8. Khaos

    Khaos Bed Dent Club Founder

    Messages:
    20,332
    I only drove it around the block, but I'll let you know later today.
     
  9. Ginger

    Ginger Bubbles

    Messages:
    23,839
    my doesnt do it that much anymore but i dont want to clamp mine anyway 2500hd leafs are stiff enough
     
  10. Bassmaster

    Bassmaster Media Mod

    Messages:
    10,307
    Describe said clunking? Mine just started making a clunk/rattle when I hit big bumps or uneven surfaces. Looked it up and most said it's in the leafs.. Tis this the same thing?

    Sent from my Galaxy S-Fawhore
     
  11. Ginger

    Ginger Bubbles

    Messages:
    23,839
    no, the cluck he is talking about is when the truck shifts it makes a cluck almost like a u joint is worn. yours is something worn out.
     
  12. Bassmaster

    Bassmaster Media Mod

    Messages:
    10,307
    Damnit. Carry on

    Sent from my Galaxy S-Fawhore
     
  13. marc

    marc WhiteSilvy

    Messages:
    5,306
    the clunk was very noticeable in my 03 its like the rear-end had like 1/2 a rotation of play in it .. only when driving slow when you accelerate quickly it doesn't happen (traffic jams where the worst)
     
  14. Khaos

    Khaos Bed Dent Club Founder

    Messages:
    20,332
    Update:

    In my application, the clamp didn't make any noticeable difference in ride stiffness.
     
  15. marc

    marc WhiteSilvy

    Messages:
    5,306
    did it fix the problem ?
     
  16. Khaos

    Khaos Bed Dent Club Founder

    Messages:
    20,332
    Yes it did.
     
  17. ScottyBoy

    ScottyBoy The LED Man

    Messages:
    1,328
    What about people with Avalanches or Tahoe/Suburban with rear coils?
    My burb has rear coils and I get the yoke clunk every so often. I just grease the shit out of my slip yoke when it starts clunking, and then it stops for about 6 months or so then the clunk comes back.
     
  18. HackMcMaster

    HackMcMaster Active Member

    Messages:
    4,740
    maybe coil compressors :lol:
     
  19. Ginger

    Ginger Bubbles

    Messages:
    23,839
    :facepalm: billy
     
  20. Cleanoh4

    Cleanoh4 Well-Known Member

    Messages:
    4,309
    Haha jesty
     

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