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1971 Cj5 Leaf Spring Question

Discussion in 'Early CJ5 and CJ6 Tech' started by Montgomery J Yarbrough, Jan 12, 2022.

  1. Jan 17, 2022
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Medford Mass USA
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    Not exactly. BDS's instructions tell you that you may need to add blocks under the frame bumpers. Specifically, you want to prevent the fully collapsed shocks from bottoming before the axle hits the frame bumper. You can also use shorter shocks (factory compressed length) but with the higher ride, this may seem like too short a shock absorber.

    I think it's usual for these kits to supply longer shocks, and it's up to the installer to verify that they won't bottom out before the axle is stopped by the bumper. Any shocks with a compressed length longer than what the factory supplies will need spacers under the bumpers.

    Another option is to raise the upper shock mount above the frame rail and allow more collapsed length for the longer shocks.
     
  2. Jan 17, 2022
    Cj5dale

    Cj5dale Member

    East Tn
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    Aug 19, 2021
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    I can’t address the flexing since I haven’t had it in that situation yet. But I’ll try to take measurements and additional pics when I get home this afternoon.
     
  3. Jan 17, 2022
    vtxtasy

    vtxtasy oldbee

    Tucson, AZ
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    Feb 5, 2006
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    That makes more sense. I made block extensions from square tube. As far as leveling, the factory fix... put blocks between the spring and axle...front too low so put blocks on the rear. Thanks.
     
  4. Jan 17, 2022
    Cj5dale

    Cj5dale Member

    East Tn
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    the ubolts are indeed 1/2” diameter.
     
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  5. Jan 17, 2022
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Medford Mass USA
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    Not sure what the question was about u-bolts... however, my BDS springs came with 1/2" u-bolts. Not an issue for me since my '75 already had 1/2" u-bolts. Some earlier years have 7/16" bolts and the usual treatment is to file the original plates' holes outward so the larger bolts fit.
     
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  6. Jan 17, 2022
    vtxtasy

    vtxtasy oldbee

    Tucson, AZ
    Joined:
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    Thanks. BDS descriptions are lame for information.
     
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