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Cj-5 Verses Cj-6 Ride Quality

Discussion in 'Early CJ5 and CJ6 Tech' started by oldtime, Apr 12, 2022.

  1. Apr 18, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Seems like there must be some unknown/underlying problem that exists with the shackle reversal since they stopped building them that way?
     
  2. Apr 18, 2022
    oldtime

    oldtime oldtime

    St. Charles,...
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    Only two problems I can think of with shackle reversal.
    1) Nose dive when braking from high speed when on road.
    2) Increased off road speeds because of the smother ride leads to increasing damage.
     
  3. Apr 18, 2022
    timgr

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

    Medford Mass USA
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    Are the c-shackles set into the frame at the rear mount?

    Suggest it's a cost-reduction move. The military config was likely more expensive and time-consuming to produce than the familiar front-shackle mount with the stamped steel shackle plates. Plus it "solves" the dive-on-hard-braking problem, which may have been worrisome to civilian drivers. Possible the original rear shackle config was more about durability (ie no bent springs) and the better ride was only coincidental. Anyway, purchasers expected a Jeep to ride like a buckboard in those days. Military wrap went away too, as I recall. Part of continuing de-mil.
     
  4. Apr 18, 2022
    fyrmn

    fyrmn Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

    High Desert AZ
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    I believe that my early 6 with shackles in the rear of the spring for the front, rides better than my 5. Could be wheel base, both have stock springs that I am sure have seen their better days. All possible contributing factors?
     
  5. Apr 18, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I'm sure eliminating the problems that arose far outweighed the benefits of them.
     
  6. Apr 18, 2022
    timgr

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

    Medford Mass USA
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    De-mil to cut costs. Uncle Sam has deeper pockets and different priorities than the civilian purchaser. Different incentives for the two markets.
     
  7. Apr 18, 2022
    oldtime

    oldtime oldtime

    St. Charles,...
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    Fyrmn,
    You have a very early CJ-6 with factory shackle reversal ?
    I expect those were only around in 1956 and 1957 ???
    Now that’s a rare frame indeed and I would certainly expect that it should give the best possible ride for a leaf spring Jeep.
    Maybe put a new set of BDS leafs on it and some soft shocks and wow that should be real nice on the road.
     
  8. Apr 18, 2022
    fyrmn

    fyrmn Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

    High Desert AZ
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    Yes, it is titled as a 56. And had BDS on it for a short while. It sat nose down because of the reverse shackle. You loose a few inches in front due to the reverse shackle set up, being in the frame. The ride was good with bds, just didn’t want to go to the work to weld new spring perches on the rear front to level it. My stock spring packs are, 11 and 13 iirc.
     
  9. Apr 18, 2022
    oldtime

    oldtime oldtime

    St. Charles,...
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    Awesome !
    I’m pretty sure the reversed shackles were all gone by 1957…
    1956 was the first year for CJ-6 and also the first year for the original rock crawler transmission ( Borg Warner T98).
    That might be the rarest of CJ’s if it had a T98A.

    If I was to build a reversed shackle cj-6 then I’d opt for a Dauntless and T18 Tera Low D20 with center flanged D44 in the rear. A truly road worthy and expedition over lander.
     
    Last edited: Apr 18, 2022
    givemethewillys likes this.
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