Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Center pin

Discussion in 'OffRoad Design' started by cochino12, Sep 2, 2004.

  1. cochino12

    cochino12 1/2 ton status

    Joined:
    Dec 23, 2003
    Posts:
    563
    Likes Received:
    0
    Location:
    Parker, Co
    I broke the center pin on my front leafs, am I able to just replace the pin or are my springs ruined? I have been told it was caused by either loose u-bolts ( I doubt that, the orig. srpings had a busted pin also) or because of steering probs (frame is cracked by steering box.)
     
  2. Muddytazz

    Muddytazz 1 ton status

    Joined:
    Jun 30, 2002
    Posts:
    20,073
    Likes Received:
    0
    Location:
    Salem, Or.
    When you take your springs out, check over the springs really good to see if you can find any signs of cracks or cracking that might of cause the center pin to break. If you can't see any signs, then yeah, just go ahead and replace the center pins. But I'd look at other things also to see WHY they did break /forums/images/graemlins/thumb.gif
     
  3. ugly_blazer

    ugly_blazer 1/2 ton status

    Joined:
    Apr 12, 2004
    Posts:
    1,214
    Likes Received:
    0
    I had a truck that had a 4" lift and had the sway bar hooked up. It always broke the pins because the swaybar to leaf spring to axle movement geometry was not right. Maybe run discos with the bar, or remove it like I did.
     
  4. supersize75k5

    supersize75k5 OrganDonorRacing.com

    Joined:
    Feb 3, 2004
    Posts:
    8,832
    Likes Received:
    4
    Location:
    gilbert az
    just replace is if all seems well, call around suspension or rv shops for the pin, you want a 3/8 centering pin 2.5 inches and just cut down to size after installing.


    also a 4 inch c clamp really makes life nice if you are doing this with the spring in the truck.

    centering pin should cost 4-6 bucks for 2...buy 2 and keep a spare /forums/images/graemlins/thumb.gif
     
  5. Stephen

    Stephen 1/2 ton status Moderator Vendor

    Joined:
    Sep 15, 2000
    Posts:
    4,227
    Likes Received:
    142
    Location:
    Carbondale Colorado
    What they said. Main problem with a broken center pin is loose ubolts.
     
  6. Triaged

    Triaged 1/2 ton status

    Joined:
    Feb 21, 2001
    Posts:
    3,808
    Likes Received:
    0
    Location:
    CA (LA/OC area)
    I've had a hard time finding center pins at any place other then NAPA.

    I have had good luck using "socket head cap screws" of the right size. They are stronger and harder then regular center pins and you can get the right length so the un-threaded portion of the bolt is what goes thru the leaves and not threads...but if you don't have your u-bolts tight anything will break.
     
  7. 70~K5

    70~K5 1/2 ton status

    Joined:
    Apr 13, 2002
    Posts:
    2,032
    Likes Received:
    0
    Location:
    sillycon valley
    [ QUOTE ]
    I've had a hard time finding center pins at any place other then NAPA.

    I have had good luck using "socket head cap screws" of the right size. They are stronger and harder then regular center pins and you can get the right length so the un-threaded portion of the bolt is what goes thru the leaves and not threads...but if you don't have your u-bolts tight anything will break.

    [/ QUOTE ]

    Triaged, if I read C Smith right, you don't want the "root" of the thread close to the edge of the piece you're holding with a bolt. /forums/images/graemlins/confused.gif
     
  8. Triaged

    Triaged 1/2 ton status

    Joined:
    Feb 21, 2001
    Posts:
    3,808
    Likes Received:
    0
    Location:
    CA (LA/OC area)
    Right...but what you are holding is all the leaves together. I think center pin's have about 1" of un-threaded shank, so the root is right around where the overload and bottom leaf is. On mine the root is in the top leaf. There is only like 1/16" of thread in the leaf pack.
     

Share This Page