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CJ5 bounce

Discussion in 'Jeeps' started by bigskytom, Jan 2, 2007.

  1. bigskytom

    bigskytom Junior Member
    from Montana
    Messages: 13

    Lately, I have been noticing what seems to be an excessive amount of bouncing of the jeep/plow when hitting a bump in the road. I know the short wheel base contributes to this, but it seems to bounce excessively. I am beginning to worry it is putting execessive strain on the plow mounts.
    Any thoughts?
  2. streetsurfin'

    streetsurfin' Senior Member
    Messages: 770

    Have you got too much slack in your chain? How are the front shocks?
  3. theplowmeister

    theplowmeister 2000 Club Member
    from MA
    Messages: 2,511

    Did you put new springs in or a lift?
  4. green frog

    green frog Senior Member
    Messages: 246

    Green Frog Snowplowing

    I have a 2000 Cherokee and I had to make a 100lb counter weight, it did help a lot.
  5. '76cj5

    '76cj5 Member
    Messages: 78

    I can't see how slack in the chain makes any difference when driving but your right about the shocks. Hard tires, stiff springs and shocks will transfer more energy. Are your spring sagging and hitting the bump stops?
  6. streetsurfin'

    streetsurfin' Senior Member
    Messages: 770

    It has to do with the arc the plow follows as it travels up and down. More slack puts it out in front of the truck. It then has the potential to swing up more, before coming down, giving a harder impact against the suspension. If the chain is taught and the ram is all the way up, the weight is on a closer plane relative to the pivot point. It is farther along its arc and doesn't have much more room to travel as it hits bumps in the road. As an example-with a dumbell as the plow and your rotator cuff as lift ram and chain, where is a dumbell easier to hold? At arms length or closer to overhead? Add a bounce to it and one looks like this:redbounce , the other looks more like this:waving: . I wonder what Bigskytom ever found out to be the problem?
  7. '76cj5

    '76cj5 Member
    Messages: 78

    I see, a shorter chain allows the plow to rise higher and close to the jeep where as a longer chain keeps the plow hanging out further.

    Never though about it much I use to keep my chain as short as possible until I started plowing some of these crazy gravel drives with humps and dips and then I had to allow the plow to drop further.
  8. basher

    basher PlowSite Fanatic
    from 19707
    Messages: 8,990

    Tired Shocks, not enough Ballast.