View Full Version : Where to get SUA?
Da Big Blue
04-24-2003, 05:39 AM
I herad the a SUA lift is ALOT smoother ride. so far all i have seen are SOA lifts though. just wondering where to find a SUA for my jeep?
Fraid I dunno what you are talking bout???? :confused:
SUA lifts in general are NOT a lot smoother ride...in general, SOA lifts are smoother (there are exceptions)
Just about every lift available for FSJs is SUA and nobody (to my knowledge) sells an aftermarket SOA kit....they are always custom fabbbed.
04-24-2003, 07:33 AM
if you have a d44 in the front then you have a spring under axle. all lift kits are sold as spring unders. jode is right, all SOA to my knowledge are fabbed up by placing new perches on top of the axle. as for ride quality i think the SOA wins it but potato-patata ;)
04-24-2003, 08:10 AM
You have D44's front and rear, then go to M.O.R.E. and buy the D44 spring perches (P/N: 98107) have them welded on, or do it yourself, and just turn your ubolts around... It's that simple. Could probably be done in a weekend if you do it yourself.
04-24-2003, 08:39 AM
what is M.O.R.E?
Mountain Off Road Enterprises http://www.mountainoffroad.com
Personally, i think their perches are very overpriced.
SUA is stock for front, and if you did it with a non stock axle, it would lower it
Originally posted by YJ-Ron:
You have D44's front and rear, then go to M.O.R.E. and buy the D44 spring perches (P/N: 98107) have them welded on, or do it yourself, and just turn your ubolts around... It's that simple. Could probably be done in a weekend if you do it yourself.It is NOT that simple on a FSJ....there is grinding of the cast iron diff involved since the springs are currently hanging off a flat spot on the diff, and there is welding to the diff which is no simple task either...it aint brain science, but it aint as easy as is described above either...not to mention extended brake lines, proper angles, steering geometry changes, longer shocks, etc....
04-24-2003, 12:01 PM
A spring under axle does have its advantages. Such as better handling and less axle wrap. It will also let the wheel stuff into the fender well better, but only when compaired to the same springs vs a SOA. Such as flat springs for both, the SUA will compress better, but a SOA will droop better. Do to the way the axle mounts to the springs.
04-24-2003, 04:02 PM
BTW, I found that summit has great prices for perches.
04-24-2003, 04:19 PM
The MORE perches are very nice. Mabye a little high priced but beefy, long, and strong. I ordered a pair for the Wag I'm building right now. Plus you can use them to relocate the axle forward or back which is nice. As far as SUA. Just say NO. You're going to have to have way more arch just to keep the truck level. The more arch the stiffer the ride generally. Plus it won't flex for crap. Thats why wag frontends are so stiff to begin with. They are SUA.
04-30-2003, 11:42 AM
I think you can find a SUA on just about any stock fsj.
Originally posted by MIDLERTH:
I think you can find a SUA on just about any stock fsj.Except for the stock SOA early J trucks w/ outboard mounted springs.
04-30-2003, 11:14 PM
my rig is still SUA front and i like it very much. it flexex well,and it kept the CG alittle lower than the 6+ inches of lift id have got from an SOA.
just make sure you use a good quality spring. some kits are notorious for being stiff. im running a tuff country EZ ride chebby lift spring,wich nmoved my front axle forward 1". if you want a "made for FSJ" spring,i beleive the consensus is the skyjacker "soft ride" springs are about the best.
i chose tuff country because a friend has them on his 77 GMC and i was really impressesd with the ride and articulation.his 6" tuff countrys let a 33" tire travel up enuff it made contact with the rear of the fender :eek: something that had never happened with the 4" rancho lift that was on it. if you are considering buying a SUA lift spring,you might try and track down some people that are running the springs you are considering,so you can feel the ride and such before handing over the $$
a properly set up SOA should give the same ride quality since you are using the same springs ;) it has been my experience that a SOA will give about the same droop as the SUA(using the same springs) while opening the door for alittle more uptravel,wich will be limited by the tire size
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