[ChrisNukemYJ]

What is the advantage of SOA? I already have a 4" lift and always see people wanting to go SOA, just wondering what advantage this gives because my rig is still running SUA.

[moonshinefuel]

The ability to run stock springs. I believe its somewhere between 6 and 7 inches of lift soa, and you get the benefit of that much lift, with a great articulating spring as opposed to a very curved arch spring trying to attain that much lift sua.

[MrPoot]

Tends to be a smoother ride. Also, you get that much more clearance without the spings under the axle.

[BJsWrangler]

In addition to everything above, there is also a some damage avoidance by going SOA, since the base of your springs get raised.

I've looked into doing this and Rocky Road (Spring over axle lift for Jeep Wrangler, SOA) has some great information on everything their kit is designed to do.

[91YJRockCrawler]

here's a good place to start if your thinking about SOA: http://www.jeepforum.com/forum/f12/soa-parts-list-reference-guide-471769/

SOA rides real nice but theres alot that goes into SOA that alot of people forget about or just dont know about, I've been researching going spring over from day one on jeepforum and i still learn new stuff when theres a new thread about it. Its the little things that count

EDIT: heres another good read http://www.jeepforum.com/forum/f12/why-not-do-soa-cheap-480663/

[Mean Max]

Originally Posted by BJsWrangler

In addition to everything above, there is also a some damage avoidance by going SOA, since the base of your springs get raised.

I've looked into doing this and Rocky Road (Spring over axle lift for Jeep Wrangler, SOA) has some great information on everything their kit is designed to do.

I used the RRO kit on my wife's '93 YJ a few years back. Other than the front Dana 30 parts, the kit is a waste of time/money.

Just my $0.02 worth.

Max

[ChrisNukemYJ]

So besides the lift, I wont feel like I'm going to fly out every time I run over a nickel? Will it effect my steering at all? And this is my DD as well as my toy, so will this effect gas mileage or anything like that? And how much extra lift will it add to the 4" I already have?

[OneCleanYj]

Originally Posted by CHRISWPAZ

So besides the lift, I wont feel like I'm going to fly out every time I run over a nickel? Will it effect my steering at all? And this is my DD as well as my toy, so will this effect gas mileage or anything like that?

Steering is generally addressed by doing some sort of cross-over steering system or high-steer. A few companies make bolt-on brackets that you can use to fab up your own steering linkage or buy it from another company. A high steer kit would be ideal but they can be costly, but since we're talking about the safety of yourself and others on the road/trail, it'd be the ideal way to go

[91YJRockCrawler]

Originally Posted by CHRISWPAZ

I wont feel like I'm going to fly out every time I run over a nickel? Will it effect my steering at all? And how much extra lift will it add to the 4" I already have?

if you do the steering right it will drive fine down the road, most steering kits run about $400 as for the extra lift it will be about 1" or 2" over what you have know if you use stock springs. If i was doing SOA with a D30 i would use a kit like this http://www.mountainoffroad.com/_e/Steering_Components/product/9930/9930_Steering_Correction_Kit_STAGE_ONE_87_95_YJ.ht m

[MrPoot]

I agree with Max, stay away from RRO. I bought their kit and ended up not useing half of it. They also took about 8 months to ship everything to me...

[Louie4]

Here's some good reading material:

http://www.jeepforum.com/forum/f12/soa-vs-sua-684340/
http://www.jeepforum.com/forum/f27/soa-vs-sua-spring-wrap-347832/
http://www.jeepforum.com/forum/f8/soa-sua-1070968/
http://www.jeepforum.com/forum/f12/soa-vs-sua-424529/
http://www.jeepforum.com/forum/f12/full-traction-soa-vs-re-soa-1024241/index2.html
http://www.jeepforum.com/forum/f12/spring-lift-vs-soa-565501/

[Krochus]

Originally Posted by moonshinefuel

The ability to run stock springs. I believe its somewhere between 6 and 7 inches of lift soa, and you get the benefit of that much lift, with a great articulating spring as opposed to a very curved arch spring trying to attain that much lift sua.

While in theory this is correct in practice I find the claims that this is a great advantage to be dubious at best considering just how trashed your average 15 year old ++ YJ spring pack is.

To do all that work and setup your angles to run a de arched spring that needed to have been replaced when Clinton was president is just setting yourself up for fail, and I may be wrong but AFIK there is not source for a NEW stock YJ replacement spring

[Louie4]

Originally Posted by Krochus

I may be wrong but AFIK there is not source for a NEW stock YJ replacement spring

You can still order them from 4wd.com and Quadratec but with as much as they want for them you might as well get lifted springs IMO. I actually gave my stock springs to my buddy. He used them on his Sammy for a SOA.

[Krochus]

My stock springs were so bad they rattled when your shook em

[ChrisNukemYJ]

I don't have stock springs... replaced them with the lift...