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Discussion Starter · #1 ·
i have a 2.5L and will be running 33's for awhile and plan on going SOA in the rear with Stock YJ springs with maybe 1 add a leaf, (4.5" Re Extrame in front).

will i have to worry about spring wrap and snapping u joints with a 2.5L?

just how long do the Stock YJ springs last with SOA?

thanks for any info

Boston Mangler
89 YJ With A Bunch Of Goodies
See It At:
http://www.yankeetoys.org/mangler/
 

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Well I've actually seen a YJ all done up SOA with stock springs. In his case it was a sorry sight. Given time it'd turn into a low rider. /wwwthreads_images/icons/smile.gif His springs were already arched the wrong way after 2 months! __---`````---__ Add a leaf would help the sag and spring wrap or try a good set of 2" - 2.5" lift srings. Snapping u-joints would be a matter of tcase/pinion alignment. It doesn't matter how much lift you have (within the u-joint's max operating angle) as long as the angles are the same you should have no vibration but could slip the slip yoke off the splines. Of course the u-joints max angle of operation can be quickly exceeded during axle droop then you'll start snapping joints. This is what is happening to my buddy's rig constantly which has a 4" lift and 2" shackle lift without an SYE. Course I'm just an amateur so I might be making all this stuff up but I did stay at the Holiday Inn. /wwwthreads_images/icons/smile.gif


'91 YJ,I-6,2.5" lift,Boomerangs,33s,D30,D35c,Lock-Rights F&R
 

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I have a 6 cyl YJ with a spring over. With the stock springs I had axle wrap that was bad enough it would allow the rear drive shaft yokes to hit each other (and damaged a 3 week old drive shaft :( I solved this by cutting the eyes off a factory YJ main leaf and adding it and the second leaf from the donor spring pack. If I try to make the axlewrap I can, but I have not noticed it at any other time. My guess would be that you will be OK.


"Honestly, I didn't lift the Jeep.
I,um..ah..lowered the axles"
 
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Discussion Starter · #5 ·
Kevin,

I am going to be doing exactly what Jeeperjohn said , but using stock J main leafs to supplement my OME 2.5" springs.

I'm going to try that out and see how the axle wrap goes BEFORE I do an anti-wrap bar. Maybe the 4banger won't need one. You can check out my set-up in July at EMWF. (I should be done by then....)

Charly

You say tomato, I say fawk you.
 
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Discussion Starter · #6 ·
i have a 4cyl and used to run stock springs.. i actually had the RE HD stock springs up front (worked great), but in the rear i had the stock ones.. i had major spring in the passenger rear leaf.. but i was also running buggy leaves, which I think contributed.. could be the lower gearing, etc.. i ran this about 2 years... didn't experience much sag with frequent rockcrawling (suprisingly).. i am now about to run 2.5" OMEs all around ..and took of the buggyleaves... should be fine, i'll give you an update in a few days..

 
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Discussion Starter · #7 ·
i have a 4cyl and used to run stock springs.. i actually had the RE HD stock springs up front (worked great), but in the rear i had the stock ones.. i had major spring wrap in the passenger rear leaf.. but i was also running buggy leaves, which I think contributed.. could be the lower gearing, etc.. i ran this about 2 years... didn't experience much sag with frequent rockcrawling (suprisingly).. i am now about to run 2.5" OMEs all around ..and took of the buggyleaves... should be fine, i'll give you an update in a few days..

 
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Discussion Starter · #8 ·
Kev, Instead of stock YJ springs, try stock CJ springs. The rear CJ's will fit a YJ. I have the 7 leaf heavy dudy ones you get from JC whitney $69 delivered.
You can't beat that. So far so good. They are very stiff at first, but what stays stiff for long when it's SOA.

Rob
http://sites.netscape.net/tapboxerc/homepage
 
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Discussion Starter · #9 ·
my buddy did a SOA using stock leaves, and I'm about to do one on mine. The key is you need to have either a doubled main leaf or an add a leaf AND an anti wrap device. From what I've heard most of the spring sag happens in the rear and is due to spring wrap. With the stock leaves alone you WILL get spring wrap.

My buddy fabricated his own anti wrap bar, similar to Sam's, using some DOM tubing, steels plate, a left over stock shackle, and left over stock shackle bushings at all mounting points. Solved his spring wrap problems there and then, and we tested it before and after and it made no noticeable difference on a ramp. Made his life a whole lot easier, though, just not having to wince every time the spring wrapped. Now his springs seem to be behaving and lasting a lot better.

My advice would be to go for the add a leafs (that's what I'm doing), and make sure you get an anti wrap bar.

Chad

Chad Lloyd 95 YJ 4.0 NP435 EBD20 woodies D44s 4.88 detroits SOA revolvers 35 X 15.5 SXs 8274
 

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I used stock YJ leafs for my SOA without an add a leaf and without an anti wrap device. After one good day of wheelin the jeep was down about 1" all the way around, and spring wrap was extremely noticeable, but didn't break anything in three or four trips that way. I eventually tried the "fix" from JP magazine, but used wagonner springs, wich helped but didn't eliminate the spring wrap. The next step is to go to a setup like the Sams bar which will eliminate the wrap.

pbm
74 cj5,304,t18,2.46 ts d20,30f,44r,soa,MORE buggy front,35's,Rci's,5pt,full cage,air,etc.
78 J10,360,727,d20,44f,44r,35's,4" lift,etc.
Support Search and Rescue.......Get Lost!
 
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Discussion Starter · #11 ·
I'm running a v8 in mine, so I cant vow for a 4cyl or a 6 but I know torque/traction is what makes it wrap.I've seen many a spoa that stands straight up and down on a good hop and live, but I have/had a good pack WITH an add a leaf turn into a S.... So IMHO an add a leaf just puts off the inevitable, it's not a fix!!

It's as close to a 1ton as it can get and still be a jeep!!! Gotta love it!!
 

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At a minimum, you will need the 5 leaf YJ springs that came on YJ's with hard tops, in the rear.

This is what I used on the front when I first did the SOA. It was still way too soft for me. I can't imagine it with the 4 leaf springs.

I now run 2" YJ and like them so far.

CJ-8, 4.0, NP435, D44 x D60, ARB's, 4w Disc, 2"YJ springs, SOA, 1" Body lift, 38.5" TSL SX

CJ-6, Cherokee
 
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