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Old 03-26-2005, 11:48 PM   #1 (permalink)
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Which ends to use on rear 4 link?

I'm researching doing a triangulated 4 link in the rear of TJ. I'm planning on using the big RE super-flex joints at the frame ends, and the M.O.R.E. bushings at the axle ends. Will these give the links sufficient range of motion?

Thanks guys.
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Old 03-27-2005, 12:40 AM   #2 (permalink)
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I'm doing something similar on my ZJ with 2.5" JJ and boulder bushings... you should have more than enough.
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Old 03-27-2005, 08:27 AM   #3 (permalink)
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Did it --works great -- stupid amounts of travel. Save some cash to buy/make limiting straps.
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Old 03-27-2005, 08:33 AM   #4 (permalink)
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why not use the bushings at the frame end and the JJs at the axle?
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Old 03-27-2005, 09:05 AM   #5 (permalink)
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Hey Vols, It looks like you used square tubing for your links front and rear. What did you use size wise and how are they holdin up.
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Old 03-27-2005, 09:20 AM   #6 (permalink)
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I use the RE spherical joints on one end & their new soft poly bushings on the other & it's great.
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Old 03-27-2005, 10:34 AM   #7 (permalink)
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I'm using RE large joints at the frame and F&K rodends at the diffs. I wish now I'd have went with a rubber bushing for each link and a softer ride.
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Old 03-27-2005, 12:58 PM   #8 (permalink)
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2x2x.250 tubing -- used the flex joints at the triangulated ends of both the uppers and lowers --- bushings at the wider ends

ask me in a few months how it's holding up -- haven't had it on the trail yet....but I think it'll hold up at least as good as than anything else out there.
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Old 03-27-2005, 01:25 PM   #9 (permalink)
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i used a 1 1/4 FK rod end at the axle and delron bushings at the frame, so far no wear on the bushing.

edit: spelling

Last edited by got 4wd; 03-27-2005 at 09:51 PM.
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Old 03-27-2005, 08:11 PM   #10 (permalink)
 
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that looks alot like the clayton kit...
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Old 03-27-2005, 08:35 PM   #11 (permalink)
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we've installed the Clayton kit -- it works great -- mine picture above is not a Clayton kit, but I will say that I certainly learned what I could from his design...and then adapted it for double-triangulation (look at my buddy's hand througth the spring and you will see the angle/location of the lower links), 113", and a 3-link front

here's the Clayton single triangulated installed in a TJ
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Last edited by Go_Vols; 03-27-2005 at 08:41 PM.
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Old 03-27-2005, 10:05 PM   #12 (permalink)
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So the question remains, which joints at which ends? I like the RE joints for the range of motion, and the MORE rubber bushings for the cushioning. So which joints at which ends? We're talking plain old vanilla triangulated long-arm 4-link folks.
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Old 03-27-2005, 11:41 PM   #13 (permalink)
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I will have a very similar set up to Vols with the exception of running the large RE joints front and rear on the links. I too am using 2x2 .250 wall square tubing. I'll break a link before I bend that shiat, and its heavy so I'll have some more weight down low. Look for a tread next week on the build up, Astar and I are doing it.
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Old 03-28-2005, 01:05 AM   #14 (permalink)
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I wanted a suspension that would not bind. I also wanted to run bushings on one end to save money...I drew it up in autocad and the setup I had was gonna bind unless I used some sort of joint on each end. So I am running 2.5" Johnny Joints...threaded on one side non threaded on the other...a pic.


lower links are 1.5" .250 DOM sleeved with 1.75" .120 DOM
uppers are just 1.5" .250 DOM
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Old 03-28-2005, 07:55 AM   #15 (permalink)
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I used JJ's at the triangulated end (i.e., at the axle truss where the links are closest) - can't tell you that it is THE best place, but I can tell you that I have absolutely no binding issues

CA YJ -- nice looking work
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Old 03-28-2005, 07:56 AM   #16 (permalink)
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I run the spherical joints on the axle end of the links, both F & R.
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Old 04-28-2005, 11:05 PM   #17 (permalink)
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Quote:
Originally Posted by P&T Jeeps
I use the RE spherical joints on one end & their new soft poly bushings on the other & it's great.
Soft poly bushings? I don't see them listed on their website.
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Old 04-29-2005, 02:17 AM   #18 (permalink)
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I'm actually getting ready to stretch my TJ and I'm using Heims at both ends of all the links. I don't think there's any chance of binding.
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Old 04-29-2005, 03:28 AM   #19 (permalink)
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I used heims at both end when I made the double triangulated setup on my CJ6. When it was done I could see that it was not necessary. I likely did not need anything but bushings or rubber mounts. I keep my coils captured though. If you keep the links in line with the mounts, there is very little bind at all. With a bushing on one end and some type of flex joint on the other, you should be fine.
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Old 04-30-2005, 09:33 AM   #20 (permalink)
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If I was going to use a bushing at one end, it would be at the frame side.

I used RE joints on one end of my lowers and the big Skyjacker heims on the other. I used all 3/4" hiems on my uppers, and an 1 1/4" heim at the axle end of my A arm in for my front 3 link.
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Old 04-30-2005, 09:43 AM   #21 (permalink)
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I am using 1"X1.25" heims, and they have stupid travel. Plenty strong

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Old 04-30-2005, 12:43 PM   #22 (permalink)
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Quote:
Originally Posted by Bushwhacker
If I was going to use a bushing at one end, it would be at the frame side.
Any particular reason for this? I've seen it done both ways and I'm debating which way to set it up for my soon-forthcoming XJ LA project.
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Old 04-30-2005, 01:56 PM   #23 (permalink)
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Quote:
Originally Posted by Bushwhacker
If I was going to use a bushing at one end, it would be at the frame side.
I did mine opposite you Bushwhacker. I got heims on frame ends. Reason being, I wanted to keep them up outta the salt and water as much as possible.

This week though, I'm trashing all the arms F/R. Changing the rear arms to MAD4WD's cartridge joints on both ends. And for the front, I'm going to build some radius arms with the cartridge joints only at the frame ends. Front axle end will keep the poly bushings.
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Old 05-01-2005, 09:44 AM   #24 (permalink)
 
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I'm a cheap SOB, so you can take this for what it worth, but I'm running poly bushings at both ends of my 4 link (yj), with rotation built into the links, and I could not imagine need more travel than what I have. They seem to provide good axle control and street manners as well. I've been running these for about a year now, maybe a dozen off-road trips, and at least 5000 miles on road, and have not had any problems

chad

btw (just to show you how cheap I am), my bushings were home made from a 24" stick of poly I got from mcmaster carr. cut it to length, pressed them into a housing made from tube, and center drilled them. I used the metal sleeve from my old leaf springs as sort of a bushing inside a bushing.
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Old 05-04-2005, 01:05 AM   #25 (permalink)
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My buddy used RE superflex on both ends with adjustability on the frame end.
Here are a couple of pics.





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