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Serious Off Road Suspension

Discussion in 'Early CJ5 and CJ6 Tech' started by shaun, Sep 25, 2016.

  1. shaun

    shaun Member

    Anyone running serious off road axles and suspension? Thought about going 2.5" lift to get a front dana 44 axle or d60 to make it more off road compatible. Yet don't know what I may need, anyone have ideas on parts and cost? Already have 225. Engine.and 33's on 15x10
     
  2. Glenn

    Glenn Kinda grumpy old man Staff Member

    Not sure what you are attempting to do when you say off road compatible. Lots of guys swap in a model 30 which is considered an upgrade. Why do you think you need a 44 or especially a 60? A 60 is so big you lose ground clearance and you have unnecessary weight.
     
  3. shaun

    shaun Member

    Wasn't sure what I have now would be able to over anything larger than a large curb. I put PS conversion and have an inch between my linkage and the leaf Springs. And heard the D27 wouldn't be strong enough. I'm not going rock climbing but somethinge smaller than MOAB. So may need a bit more "flex" with my suspension and axles. D30, would I have to change gearing? Both axles? Steering?
     
  4. Mcruff

    Mcruff Earlycj5 Machinist

    My 71, has 3.73 gears in both front and rear axles. My front axle was changed to a dana 30 back in 2005 and has an Aussie locker in it with a power lock in the stock dana 44. I have power saginaw in it with disk brakes up front, still run the stock clutch cable and 10" rear drum brakes, I also have a Rancho 2 1/2" lift and run 31x10.5 MT tires all around. this Jeep will flex awesome as should any of these jeeps from about 1975 and older. Mine has gone everywhere I have ever asked it, to Tellico 4 times, Stoney lonesome and several other places mudding and rock crawling without problems. I drove it 225 mile to Tellico twice, wheeled it and then drove it home. You certainly don't need a dana 60 in the front or rear or a dana 44 in the front to do anything within norm for a jeep. The WW2 jeeps were basically the same as these were and they went everywhere without a lot of problems.

    Your jeep if its in good shape, even stock should go just about anywhere within reason and probably shock you at its capability while doing it.

    Please don't take offense but how old are you and what is your current jeep experience?
    It sounds like you don't have much experience jeepin or have never owned one of the older jeeps.
     
    dnb71R2 and timgr like this.
  5. Glenn

    Glenn Kinda grumpy old man Staff Member

    I can't fairly comment on that type of terrain but plenty of guys here can, and they have done the conversions necessary. It would probably help too if you post a picture of your steering setup and the clearance you have currently.
     
  6. shaun

    shaun Member

    I'm 37 and have been on rough terrain with jeeps, I don't take offense to the questions, everyday is a learning experience. I'll try to get a pic of my build. It's currently under body work and fixing my steering. But I can show the linkage and whatever else I can get posted
     
  7. shaun

    shaun Member

  8. Glenn

    Glenn Kinda grumpy old man Staff Member

    Thanks for posting the pictures. It looks to me like you have lift springs already, judging by the apparent arch of the front springs.
     
  9. shaun

    shaun Member

    I do 2.5 with hydro shocks. Rides smooth
    But when my tire drops, it hits the tie rod link. Flipping it could be a solution but don't know thexactly effects it could do.
     
  10. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    I guess everyone has their idea of the 'right' set-up - and certainly its very individual and personal. I run 33x10.5s on mine and have no interest for more tire than that. I do run the D27 front and D44 rear with 10inch brakes. I have taken mine to Moab a few times so far (initially with 31s) and run some reasonable hard stuff here in Colo. For me, any interest to get taller is long gone - especially given the short wheelbase and narrow track. A couple years ago, my improvement list was prioritized differently with ideas of lockers, power steering, brake upgrades, D30 for the front etc. Today I'd much rather spend my money and time on better flex - I have an old Rancho kit as best as I can tell and would love to replace with something like a softride from Skyjacker or the like. ALso would like to go TBI and get lower gearing (just put in Tera Lows, but a truck 4speed is truly the way to go. Locker has moved way down the list - with good flex and good tire traction and good gearing its much less needed. Plus a simple winch can get me over that one spot I need the locker. Keeping the engine running on any terrain and tires in contact with ground and not spinning seems to me to be the way to do it. Somewhere down the road a D30 with disks or 11inch drums and the improved open knuckle turning radius would be really nice...we all have our priorities I guess.
     
  11. Broylz

    Broylz Member

    I initially wanted to stretch mine and go soa on 37s but so far my 10 leaf packs and 31s have gone everywhere i need to. Scrubbed the bottom once on a creek edge but just enough so that i will replace the 31s with 33x10.50s when the need arises.

    I would suggest wheeling it as is until you get stuck or break it and then upgrade as necessary.

    Disc brakes, power steering with a tighter turning radius and efi of some sort would be nice eventually.
     
  12. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    One of my best and most capable wheelers was my '70 cj5 with v6, t-18, d18 w/od, 25 front & 44 rear with 5.38s and really tight LSDs, power steering and minimal lift and fender trimming to clear 33s. The springs were mixed and matched from old spring packs. Lots of thin springs as opposed to a few stiff ones. It embarrassed a lot of high-dollar rigs and was (almost) impossible to roll. It handled fine on the road. My 3b has wrangler spring-over, and while it would out-wheel it, the road manners just aren't the same and driveshaft angles are not desirable.
     
    montanacj likes this.
  13. 1960willyscj5

    1960willyscj5 Well-Known Member

    if you learn how to drive what you got the older CJ5's, 3's, and 2A's will climb trees if you want them to.
     
    timgr, sterlclan and dozerjim like this.
  14. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    I would address the issues one at a time. Tie rod interference has been discussed a lot here. I suggest you post more pictures of your steering and tie rods, and ask for suggestions. With a 1-piece tie rod, a Wagoneer right-side knuckle works well, with two holes in the steering arm. This knuckle was used on all the full-sized Jeeps before 1974, and some other models (Commando? Utility?). Pretty easy to source.

    Also your u-bolts should be cut off with about 2 threads protruding beyond the nut. The way they are now, they will get you hung up on obstacles and be bent over, so you'll never get them off without cutting the bolts (cutting the bolts is very dramatic - they cut through with a bang).
     
  15. Mcruff

    Mcruff Earlycj5 Machinist

    Adding caster shims to get the right angle will make it easier too steer and add clearance to your tierrod tube.
     
    Twin2 and timgr like this.
  16. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Yep. Have you had the alignment done? Essential after adding lift springs IMO. Your local tire shop can do it for about $50 ... tell them you know they can only adjust the toe-in and center the steering, but you want the printout from the machine. This will tell you how much added caster you need. Mike (Mcruff) is a master machinist and makes excellent steel caster shims, and has helped many of us on this board with these parts.
     
  17. nickmil

    nickmil In mothballs.

    I'm also trying to figure out why you have a jam nut and a clamp for that tie rod end...
     
  18. Glenn

    Glenn Kinda grumpy old man Staff Member

    X2!
     
  19. shaun

    shaun Member

    I Bought the tubes from tarry, the u bolts I replaced and have not cut them yet. I'm going to have my alignment checked after winter since I have done a few changes. Especially wother upgraded brakes
     
  20. Jeepenstein

    Jeepenstein Me like Jeep.. 2024 Sponsor


    You jeep is more than capable as is. The D 27 is fine for your 31" tires, as stated above the dana 30 is the common upgrade, the dana 44 would be fine but finding one the correct width is challenging. As for the clearance between your tie rod and springs, remember your tie rods travel with your springs so that clearance should remain fairly constant throughout the suspension travel.

    Bubba