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Spring over-----Spring under

JeeperG

JeeperG

Well-Known Member
Location
Riverdale
After reading the shackle thread I am just Curious what people have to say about the Spring under, Spring over thing...

I just broke a spring perch on my SOA and put it back to spring under and may consider keeping it sprung under... (ran the SOA 3 years)


Also I want to run 37" tires. Now what do I do :confused: I have bushwacker flairs so I can do a bit of fender trimming so if I stay sprung under, what is the least amount of spring lift I could do if I wanted to have little spring lift and some cutting of fenders?

I also have a 1" body lift

Should I go back to SOA ?

So what is everyones take on both options...
 
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shmoesmith

shmoesmith

Registered User
get a new beefier spoa perch...My SPOA perches were WAY beefier than stock, and they need to be. The reason is because on a SPOA axle configueration MUCH more leverage is placed against the springs (reason they flex WAY better than spring under)but because of that extra leverage you will need a beefier spring perch. Get a good perch and take your time welding it on. :)
 
JeeperG

JeeperG

Well-Known Member
Location
Riverdale
Hickey said:
If you wanna run spring under, pony up for some really good springs. Not pro comps.
Click to expand...

Yea if I do I may run the 4.5" extreme duty from Rubicon Express, Maybe I dunno I want to do this,NO wait maybe I will do this, or maybe even this.

I dunno I can't make up my mind..
 
TigerStripe40

TigerStripe40

Arrogant Bastard
Location
Salt Lake City
JeeperG said:
Yea if I do I may run the 4.5" extreme duty from Rubicon Express, Maybe I dunno I want to do this,NO wait maybe I will do this, or maybe even this.

I dunno I can't make up my mind..
Click to expand...

Spring over vs spring under is really up to you.
Personally, I'd decide what you want, then call Alcan Spring in Grand junction, and have them make the springs for you.

A number of people in my club run alcans (both SUA and SOA) and LOVE them.
Alcan will make spring packs for ANY configuration you want.

One guy is running 5.5" lift Alcans SUA on his FJ40, and fits 37" tires.

For my money, I am going to run SOA on stock height alcans for ride quality. The OME's ar enice, but they aren't THAT nice...
That or I need to get a couple of heavy bumpers to weigh my truck down a bit.

-James
 
Caleb

Caleb

Well-Known Member
Location
Riverton
TigerStripe40 said:
Spring over vs spring under is really up to you.
Personally, I'd decide what you want, then call Alcan Spring in Grand junction, and have them make the springs for you.

A number of people in my club run alcans (both SUA and SOA) and LOVE them.
Alcan will make spring packs for ANY configuration you want.

One guy is running 5.5" lift Alcans SUA on his FJ40, and fits 37" tires.

For my money, I am going to run SOA on stock height alcans for ride quality. The OME's ar enice, but they aren't THAT nice...
That or I need to get a couple of heavy bumpers to weigh my truck down a bit.

-James
Click to expand...


I agree about the Alcans...
 
W

WJL

Registered User
Location
Eden, Utah
The SUA or SOA is up to you.
If you can afford and wait for Alcans do it.
RE 4.5 SUA are also good springs, order monday get here in that week.
Alcans will require a little more time and info.( like to know the front end weight on axle, rear the same, accessories, spring lengths, all that good stuff and they then custom make them for your vehicle). When you get them WOW they work very well, little break in.
 
JeeperG

JeeperG

Well-Known Member
Location
Riverdale
We will see what I do? I am still not sure. Problem I have now is low funds, and running the SOA I have 2" springs so I am at the Legel Limit of 24" with 33" tires.
 
mbryson

mbryson

.......a few dollars more
Supporting Member
Location
Bountiful, land of rocks
JeeperG said:
We will see what I do? I am still not sure. Problem I have now is low funds, and running the SOA I have 2" springs so I am at the Legel Limit of 24" with 33" tires.
Click to expand...


:eek: :eek: :eek: :eek: Really? You're at 24"? I thought my YJ was looking big with the 2.5" lift and SOA axles. I don't even have tires on it yet.
 
Caleb

Caleb

Well-Known Member
Location
Riverton
JeeperG said:
We will see what I do? I am still not sure. Problem I have now is low funds, and running the SOA I have 2" springs so I am at the Legel Limit of 24" with 33" tires.
Click to expand...


that seems pretty tall for that combo...I had 2.5" springs SOA (same setup Marc is refering to) and I was on 35s and I was 24" to the bottom of my rail...personally I loved that setup, I think it looked great and performed well too, and was street legal.
 
JeeperG

JeeperG

Well-Known Member
Location
Riverdale
Supergper said:
that seems pretty tall for that combo...I had 2.5" springs SOA (same setup Marc is refering to) and I was on 35s and I was 24" to the bottom of my rail...personally I loved that setup, I think it looked great and performed well too, and was street legal.
Click to expand...


I am serious though It is freaking tall with the spring over, Braden seen it and was like damn your as big as me and I am running 37's Unless my springs are bigger than I was told I dunno. :confused:
 
Caleb

Caleb

Well-Known Member
Location
Riverton
JeeperG said:
I am serious though It is freaking tall with the spring over, Braden seen it and was like damn your as big as me and I am running 37's Unless my springs are bigger than I was told I dunno. :confused:
Click to expand...


I'll post a pic of mine when I get home...
 
Caleb

Caleb

Well-Known Member
Location
Riverton
where are you measuring on the frame? you are supposed to measure the lowest part of the frame, which is usually in the belly pan area..
 
Caleb

Caleb

Well-Known Member
Location
Riverton
here is a pic of mine...this is with 35s and the monoleafs, but my 2.5 springs sat identical to these when SOA (I ran SOA rear and SUA front for a little while so I knwo they were level:D)
 
mbryson

mbryson

.......a few dollars more
Supporting Member
Location
Bountiful, land of rocks
Supergper said:
here is a pic of mine...this is with 35s and the monoleafs, but my 2.5 springs sat identical to these when SOA (I ran SOA rear and SUA front for a little while so I knwo they were level:D)
Click to expand...


.........and I spent how many hours with that today? :D :D
 
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