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spring perch tech

Discussion in 'The Garage' started by big83chevy4x4, Aug 13, 2005.

  1. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    would making the spring perches longer benefit me in any way? i have 18" of 2.5" 1/4" wall square tube and was thinking of making the perches 8" long as oposed to the stock 6". seems like it would help with axle wrap a little, but then it seems like they will be way too long and may bind or catch on something.
     
  2. 85mudblazin

    85mudblazin 1/2 ton status

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    Might be better if you ever want to move your axle around. Would give more support if you wanted to move it forward or back.
     
  3. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    well i decided to cut them at 6" and weld the 5/16" caps on it, so the actuall part that touches the spring is 6" long. i don't plan on moving the axle any time soon (expect to correct for the shackle flip). if i do move the rear axle its when i go with something other than leafs in the rear.
     
  4. clarkjw24

    clarkjw24 1/2 ton status GMOTM Winner

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    Heres a set I made. 6" out of 1/4 2.5x2.5. 1/2 plate on top and inside. I'm gonna make another set but I will be making them 8" so I can move my axle back.

    [​IMG]
     
  5. Jishory

    Jishory 1/2 ton status

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    so longer spring perches help with axle wrap?
     
  6. sled_dog

    sled_dog 1 ton status

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    gives the spring more solid space to sit on. in my mind, more solid space its sitting on, less spring to wrap and more place for that force to go. Always heard longer perches help axlewrap, no experience with it.
     
  7. Masiony

    Masiony 1/2 ton status

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    it helps the same way an overload helps. if you have an overload still, then those perches do not need to be any longer.
     
  8. Jishory

    Jishory 1/2 ton status

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    ah, makes sense
     
  9. mouse

    mouse 1/2 ton status

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    There are some manufacturers of spring perches that make them longer for the sole purpose of controlling spring wrap. I have installed some for jeepers who have converted to a spring over configuration.
     
  10. blazinzuk

    blazinzuk Buzzbox voodoo Premium Member GMOTM Winner

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    I tried a couple of different lengths of perches on some SOA samis and Jeeps they don't help much so if you have an axle wrap problem its probably not going to cure it. One suggestion after watching mine very carefully, is to make sure the edges are beveled. the longer your perches are the more stress is put on the spring at the very edges and beveling them takes some stress away
     
  11. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    Couldn't be said better!
     

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