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Unread 12-15-2011, 08:16 PM   #1
Nates93yj
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Sua leaf spring info for a tj

What are people using for leaf spring. Spring under is what id like to hear more of.
This thread is what caught my attention, Great thread tons of useful info to
http://www.jeepforum.com/forum/f22/k...opper-1051428/

Got me thinking why not try something different and work with what i know.

After researching for weeks ive found the xj to be the most common
. But for a sua it seems its really long for smaller tires and would make for horrible departure angles, of course i know if i wanted departure angles. Leafs are not what i should be looking at. But i actually really liked leafs sua in the rear of my yj. I have 31s for now and foresee 35-37s in the future.

But back when i had my yj i did a lot of research on the wagoneer front leaf spring. 3 inches longer than YJ leafs and 4.5 shorter than the xj yet still offers a 2 inch offset center pin. Great since im running the stock gas tank Because if it wouldn't work with the tank i could switch the spring around untill i did something about it. Also read that the waggy is on the weak side for breaking but whenever i read that the people are spring over and on 39s lol so hopefully they are stronger spring under.

I found this to be a very useful picture



http://littlekeylime.com/MrN/mrnimages/leaf_springs.png Bigger version and click it to zoom in

Note this is not my picture, kudos to who made it but gives you great info on springs

If i happen to run across springs here is what i would be working with at the moment.
31s lol
d44 rear
2.5 old man emu lift
stock tank

as for what im thinking
u bolt plate like this - http://www.ruffstuffspecialties.com/catalog/DEAV-WIYP.html
waggy front springs
frenched into frame maybe!?
spring perches with offset holes for more stretch if needed
clearance the tank for the diff and raise it an inch

Am i crazy or is this a good start. Advice?

Mods can move this if its not technical enough.

Thanks in advance

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Last edited by Nates93yj; 12-15-2011 at 09:26 PM.. Reason: Added linky
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Unread 12-15-2011, 09:17 PM   #2
Ripper3494
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ive seen a few tjs on leaves. im not really sure the reasoning behind it other than the simplicity and ease of use of leaves but hey its something different, and if it works for you i say go for it. looks like your off to a good start, lotta good information there
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build thread:
[url]http://www.jeepforum.com/forum/f22/94-yj-6-0-build-spud-1218315/[/url]
1994 yj stretched, locked and loaded - 6.0l vortec lq4, 4l60e, np231, Dana 44s 37" interco trxus m/t, 3.5" bds front leafs, double triangulated 4 link rear on xj front coils.
1997 ZJ limited - BONE stock
2003 tj - 4in skyjacker, 33" mickey thompsons
my on board alternator/welder write up
[url]http://www.jeepforum.com/forum/f12/alternator-welder-write-up-1301614/[/url]
my tj 1/2 doors on a yj write up
[url]http://www.jeepforum.com/forum/f12/tj-uppers-yj-half-doors-hard-top-installation-1417686/[/url]
RC vs BDS
[url]http://www.jeepforum.com/forum/f12/rough-country-vs-bds-1461555/[/url]
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Unread 12-15-2011, 09:18 PM   #3
Ripper3494
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although if i were you i'd re think the stock tank issue, a fuel cell is a better idea itll just get the thing out of your way. our tj isnt here right now or id look at it, but i know on my yj the tank is always getting in the way of things i wanna do back there

edit: just noticed you addressed the tank issue. but behind the seat fuel cell would be cool, all depends on what you wanna use it for. it would be bad for a family hauler with the tank in the body but offroad itd free up a ton of space
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build thread:
[url]http://www.jeepforum.com/forum/f22/94-yj-6-0-build-spud-1218315/[/url]
1994 yj stretched, locked and loaded - 6.0l vortec lq4, 4l60e, np231, Dana 44s 37" interco trxus m/t, 3.5" bds front leafs, double triangulated 4 link rear on xj front coils.
1997 ZJ limited - BONE stock
2003 tj - 4in skyjacker, 33" mickey thompsons
my on board alternator/welder write up
[url]http://www.jeepforum.com/forum/f12/alternator-welder-write-up-1301614/[/url]
my tj 1/2 doors on a yj write up
[url]http://www.jeepforum.com/forum/f12/tj-uppers-yj-half-doors-hard-top-installation-1417686/[/url]
RC vs BDS
[url]http://www.jeepforum.com/forum/f12/rough-country-vs-bds-1461555/[/url]
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Unread 12-15-2011, 09:27 PM   #4
Nates93yj
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Quote:
Originally Posted by Ripper3494 View Post
although if i were you i'd re think the stock tank issue, a fuel cell is a better idea itll just get the thing out of your way. our tj isnt here right now or id look at it, but i know on my yj the tank is always getting in the way of things i wanna do back there

edit: just noticed you addressed the tank issue. but behind the seat fuel cell would be cool, all depends on what you wanna use it for. it would be bad for a family hauler with the tank in the body but offroad itd free up a ton of space
I completely agree, But as of now the stock tank isnt costing me anything. someday a rci would be the plan. Thanks for the heads up tho
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Unread 12-16-2011, 08:05 AM   #5
egodfrey
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Why spring under?

Are you worried about axle wrap?Just do a traction bar.
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Unread 12-16-2011, 08:07 AM   #6
Ripper3494
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Originally Posted by egodfrey View Post
Why spring under?

Are you worried about axle wrap?Just do a traction bar.
x2 mine took my about half a day to fab up.

itd help to know what the op is building for. soa and sua are good for different things
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build thread:
[url]http://www.jeepforum.com/forum/f22/94-yj-6-0-build-spud-1218315/[/url]
1994 yj stretched, locked and loaded - 6.0l vortec lq4, 4l60e, np231, Dana 44s 37" interco trxus m/t, 3.5" bds front leafs, double triangulated 4 link rear on xj front coils.
1997 ZJ limited - BONE stock
2003 tj - 4in skyjacker, 33" mickey thompsons
my on board alternator/welder write up
[url]http://www.jeepforum.com/forum/f12/alternator-welder-write-up-1301614/[/url]
my tj 1/2 doors on a yj write up
[url]http://www.jeepforum.com/forum/f12/tj-uppers-yj-half-doors-hard-top-installation-1417686/[/url]
RC vs BDS
[url]http://www.jeepforum.com/forum/f12/rough-country-vs-bds-1461555/[/url]
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Unread 12-16-2011, 08:38 AM   #7
Nates93yj
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Quote:
Originally Posted by egodfrey View Post
Why spring under?

Are you worried about axle wrap?Just do a traction bar.
No, im not worried at all.

Something different and id really not go that high
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Unread 12-16-2011, 08:56 AM   #8
egodfrey
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So you'd rather just get hung up on the springs all day?

Just not understanding why you would go from coil springs to spring under.
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Unread 12-16-2011, 10:07 AM   #9
Hussler
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Quote:
Originally Posted by Nates93yj View Post
No, im not worried at all.

Something different and id really not go that high
Not to be one of those guys, but why dont you just change out the front clip with a YJ's and have a coil sprung YJ to be different?
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Unread 12-16-2011, 01:45 PM   #10
Tom95YJ
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Quote:
Originally Posted by egodfrey View Post
So you'd rather just get hung up on the springs all day?

Just not understanding why you would go from coil springs to spring under.

X2, Sell the TJ buy an XJ if you want a longer wheelbase and rear leafs, Atleast the XJ has the same front suspension as the TJ and its SOA in the rear
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Unread 12-16-2011, 02:09 PM   #11
CoryA
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Soa and French the spring hangers IMO
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Unread 12-16-2011, 04:38 PM   #12
Nates93yj
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because i dont want a cherokee
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Unread 12-16-2011, 05:47 PM   #13
kyle_craig
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Soa and French the spring hangers IMO
I think this would be rad.
To all the naysayers....TJs are awesome, leaf springs are stable and just plain work, and SOA doesn't make sense unless you're looking for a lot of lift. Of course, I'm partial.
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Unread 12-23-2011, 06:42 PM   #14
ssyj94
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Guess my yj's link suspension is all wrong since the tj guys are wanting togo sua.

Having gone from sua to soa to 4 link my advise is keep the coils. I had wheelhop sua and soa w/traction bar. With the links it just sticks and goes no more rock humping.
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Unread 01-12-2012, 06:08 PM   #15
SLADE
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I'm SUA rear using 4" lift 56" Chevy leafs. I took the bottom 2 or 3 leafs out of the pack to soften the ride a little. When I first did the leaf swap, I used XJ leafs with an extra main, SOA but was not at all happy with them. They where too soft and had too much wrap. I then went to a stock 56" Chevy pack SOA. I was happy with the springs, but wanted to lower the Jeep a few inches. Ended up un-Frenching the spring hanger and going with the 4" lift 56" Chevy's.

On the front I'm using 44044's SOA with a leaf or 2 removed. I ran a 6" Clayton long arm setup on the front before I went to leafs.

Current setup (SOA/SUA) 37" Rockers.


Previous setup (SOA/SOA) 40" LTB's
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