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Old 10-11-2018, 06:26 PM   #1 (permalink)
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SUA conversion

Needing opinions from the experienced builders out there, doing a 1 ton swap with 3 link in front and xj leafs in the rear of my tj and wondering if one these kits has an advantage over the other? Iím not nice to my stuff so looking for the strongest design I can get. Thanks fellas!
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Old 10-11-2018, 09:03 PM   #2 (permalink)
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I built one similar to the Barnes kit and chose that way the unlit threads donít get boogered up. Never know when youíll have to swap a center pin in the field and Iíd like to not have to cut the ubolt.
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Old 10-15-2018, 05:38 AM   #3 (permalink)
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I also made my own similar to the Barns kit, I initially used part store u-bolts (those gold colored ones) and found them to shear at the bends after getting beat on. I ended up going to a heavy equipment place that bent up some beefier u-bolts and never had the issue again.
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Old 10-15-2018, 10:21 AM   #4 (permalink)
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Are you going to run a anti wrap bar? I would suggest that you do. I messed around with a few variations on my YJ with rear XJ spring stretch. I have seen a few rigs run SUA to try and lower the ride height and although doable all went with a anti wrap bar as well eventually, just to much wheel hop.

There is alooot to consider with this swap. Your ride height is kinda limited to the front 3 link. If your not going to tube out the front and slam it you can only go so low with the factory frame, oil pan etc. There are tons of builds on here that are going the same route.

I landed on rear XJ stock spring pack with a extra XJ rear main leaf with the bushing pressed out creating a military wrap on the front spring eye. SOA with a Ruff Stuff anti wrap kit and the rear shackle to the top of the rear bumper/cross member. Net lift was around 4.5"

Hope this helps!
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Old 10-21-2018, 11:58 AM   #5 (permalink)
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I also did a DIY u-bolt setup...I just ordered the U-bolts the way I wanted....pretty much like the Barnes.

If you do any rock crawling, you don't want the other....it's just more shit hanging down to get caught on stuff.
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Old 11-01-2018, 10:28 AM   #6 (permalink)
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Personally, I prefer to link the rear and run leaves up front. You are going to need to minimize axle wrap, so I'd recommend a set of longer perches. Something like these from RuffStuff:

https://www.ruffstuffspecialties.com...D44-PERCH.html

Also, neither of those designs protects the center pin, although you could add a piece of solid stock under the Barnes style that has been grooved for the u-bolts and drilled for the center pin nut. Here is a picture:

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Old 11-01-2018, 11:28 AM   #7 (permalink)
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Quote:
Originally Posted by Kreep View Post
Personally, I prefer to link the rear and run leaves up front. You are going to need to minimize axle wrap, so I'd recommend a set of longer perches. Something like these from RuffStuff:

https://www.ruffstuffspecialties.com...D44-PERCH.html

Also, neither of those designs protects the center pin, although you could add a piece of solid stock under the Barnes style that has been grooved for the u-bolts and drilled for the center pin nut. Here is a picture:

Those perch’s suck SUA. The limit droop if your spring has much arch. They are good for SOA.

I’d link the rear if wrap is an issue. XJ leaves are pretty garbage in my experience.
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Old 11-01-2018, 11:35 AM   #8 (permalink)
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Those perchís suck SUA. The limit droop if your spring has much arch. They are good for SOA.

Iíd link the rear if wrap is an issue. XJ leaves are pretty garbage in my experience.
True on all points. I consider reduced axel wrap worth it though.
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Old 11-01-2018, 03:59 PM   #9 (permalink)
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True on all points. I consider reduced axel wrap worth it though.
If axle wrap is of concern on a 1 ton TJ, you need to consider a trackbar over marginal gains with a 1/2" longer spring pad.
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Old 11-05-2018, 08:18 AM   #10 (permalink)
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If axle wrap is of concern on a 1 ton TJ, you need to consider a trackbar over marginal gains with a 1/2" longer spring pad.
If they were only 1/2" longer they wouldn't limit droop, I think they are like 3" longer. Agree that a traction bar (not trackbar) is needed in the rear on any leaf sprung rig with tires over 36" and that is only a Band-Aid, links are where its at
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