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Leaf pack on 77 dually

Discussion in 'The Garage' started by babyburb, Feb 4, 2007.

  1. babyburb

    babyburb 1/2 ton status

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    Does anyone know off hand what size rear leaf spring is on a 77 crew cab dually? The vehicle is not mine, I was looking for 56" springs instead of my 52" and was wanting to know before I approach the person. I MIGHT be able to get them for free if so.
    Thanks
     
  2. dremu

    dremu Officious Thread Derailer Premium Member

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    Likely to be 56"s, yes. Note that a dually will prolly have a great many leaves, so you'll need to take a few out to make them flex. My 56"s came from my crewcab originally, and went from 8 or 9 leaves to five or six.

    -- A
     
  3. babyburb

    babyburb 1/2 ton status

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    so I would just unbolt the pack take out the top 3 or 4 and bolt them back down?
     
  4. dremu

    dremu Officious Thread Derailer Premium Member

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    Well, obviously you need the top leaf, as it has the eyes :haha:

    You can finetune it ... I think I took out every other one, or something. It's a handy way to change ride height in the back and adjust flex :)

    -- A
     
  5. nemesis_pyros

    nemesis_pyros 1/2 ton status

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    Kind of a different question but would the longer leaves or shorter ones do more to stiffen up a spring?

    /end hijack
     
  6. dremu

    dremu Officious Thread Derailer Premium Member

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    I think the longer ones would, IF the thickness was the same. Unless the metal was treated differently for varying spring rate.

    Err. That's complicated physics and my head hurts.

    -- A
     
  7. tipoil

    tipoil 1/2 ton status

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    the longer the leaf the softer it ride look at it that way (it is easyer to flex a piece of flat steel bar that is 10ft long whit ur hand then a 4 inch piece)
    keep the first 2 from the top then remove a few here and there

    remember the longer,the softer the ride and remember to put back the helper too(the last one that is thiker)

    just take a look a new truck they all have long leaf in there(light duty truck anyway)

    keep in mind i work in a spring shop all day long...:(

    hope it helped a bit!!
     
  8. babyburb

    babyburb 1/2 ton status

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    Thanks for the info so far. I'm might try to go this weekend to look at them.

    Is free a good deal? I dunno, we'll find out:D
     

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