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what length shackles for 64's?

Discussion in 'The Garage' started by muddybuddy, Jul 9, 2006.

  1. muddybuddy

    muddybuddy 3/4 ton status

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    im going to start my 64's swap in the rear on tuesday and need to order some shackles for the flip. the springs are 5" lift if that matters. what length do you all run? thanks
     
  2. muddybuddy

    muddybuddy 3/4 ton status

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    none of the 64" spring crew on? my guess is i should go with 6" shackles, but im not sure
     
  3. ntsqd

    ntsqd 1/2 ton status

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    The rule of thumb for compression shackles that I was given by Erik @ Deaver Spring is this:

    Take the difference btwn the at-rest bushing to bushing straight line length and the bushing to bushing length along the main leaf. That is the minimum shackle length & that length + 2" is about your max length.

    I believe this rule assumes that your bump stop will limit travel with 1" of arch left in the spring, which is what Deaver normally recomends with their springs. Otherwise something like a wanna-be monster truck could end up with some reeeaaallllyyyy long shackles.
     
  4. Cajun4x4

    Cajun4x4 1/2 ton status

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    redneckdude went with 6.5" shackles
     
  5. muddybuddy

    muddybuddy 3/4 ton status

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    alright thanks ill measure them
     
  6. muddybuddy

    muddybuddy 3/4 ton status

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    well i just measured and the bushing to bushing is 60.5" and the main leaf is 67" so i can use anywhere from a 6.5" to 8.5" correct?
     

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