Fox 2.5 DSC Suspension - A Brief Overview, Procedure, and Review of Proper Suspension Setup

[Ready Go]

I totally understand your excitement. But, take your time and do it right. The Eibach's are for off roading. Something I really wanted. As time went by and I began bringing more stuff with me(guns and ammo are heavy) they bogged down under the load. They are great if I'm just exploring. In fact, they are awesome. They just aren't designed for hauling loads. The airbags make a great difference and when I'm unloaded I air them down. Just not what I had originally planned for.

Ahhh, I forgot to mention, when my truck was about a week or so old, I popped both rear springs out, cut one full coil off the RR the side-to-side level it..AND added Airlift bags into the rear coils that I run at 5psi. I'll swap those into the new rear Eibachs or ORPs also for the added adjustability

 

[boogielander]

don't sleep on the clayton rear springs if you have constant load. im beyond happy with mine even though they were a royal pain in the **** to put in.
not sure about unloaded performance though because there's no such thing as "unloaded" on my truck anymore.

 

[CHeYeNNe71]

don't sleep on the clayton rear springs if you have constant load. im beyond happy with mine even though they were a royal pain in the **** to put in.
not sure about unloaded performance though because there's no such thing as "unloaded" on my truck anymore.

Which Clayton coils are you running. Wondering if I could swap them in, instead of using a spacer, but wonder how much lift.

 

[Ready Go]

Ok everyone..I talked to Dillon at Fox.
(#1) Fox factory sends the PE DSC 883-06-166 set at 3.0" lift.
(#2) ☆☆2 FULL rotations of the preload locking collar equals 1/4" of height change☆☆
(#3) Threads do not equate to collar rotatuon or height change.

Dillon confirmed for me that if I want 2.75" lift, I should back off the preload collar 2 FULL turns and that would be 2.75" lift.

 

[boogielander]

Which Clayton coils are you running. Wondering if I could swap them in, instead of using a spacer, but wonder how much lift.

2.5 Triple Rate HD
JT application.

Jeep Gladiator 2.5" HD Triple Rate Rear Coil Springs (2020+, JT)

Jeep Gladiator 2.5" HD Triple Rate Rear Coil Springs (2020+, JT) Quick Glance: Free Length = 21.625" +/- .25" Spring Rate 1 = 188 lb/in Spring Rate 2 = 308 lb/in Spring Rate 3 = 396 lb/in Powder Coated Black MADE IN THE USA! Enhance your Jeep’s suspension with our premium coil springs...

claytonoffroad.com

 

[boogielander]

Ok everyone..I talked to Dillon at Fox.
(#1) Fox factory sends the PE DSC 883-06-166 set at 3.0" lift.
(#2) ☆☆2 FULL rotations of the preload locking collar equals 1/4" of height change☆☆
(#3) Threads do not equate to collar rotatuon or height change.

Dillon confirmed for me that if I want 2.75" lift, I should back off the preload collar 2 FULL turns and that would be 2.75" lift.

do measurement to double check.
when i asked "how many turns to bring it down 1"?" they told me "half to three quarters of a spin should do the trick"

and that is direct from the service department.

 

[Ready Go]

do measurement to double check.
when i asked "how many turns to bring it down 1"?" they told me "half to three quarters of a spin should do the trick"

and that is direct from the service department.

Good advice!
As much as I like to plan out every detail before I start a project, I do imagine I'll have to readjust the front PEs ride height after installing them..because I'm so particular on dialing in my setup..NO WAY it's gonna be spot on, but I'm shooting for as close as possible.
Currently bogged down with summer stuff..hoping to install the Thuren rear U/L CAs next Monday, then get some miles on to "feel" out they're improvements..Foxs will be a couple/few weeks yet(?)..but I'm excited!

 

[Ready Go]

Hey..quick question..has anyone noticed if the front PEs droop/sag after installing them and putting some miles on?
Just wondering if I should set a hair high initially if they'll settle?

 

[mplaramie]

Hey..quick question..has anyone noticed if the front PEs droop/sag after installing them and putting some miles on?
Just wondering if I should set a hair high initially if they'll settle?

Mine had very minimal droop after installing.

 

[Ready Go]

Mine had very minimal droop after installing.

Excellent, thank you!
I'll probably set them at height I want..run them a while, and then readjust as needed

 

[CHeYeNNe71]

Hey..quick question..has anyone noticed if the front PEs droop/sag after installing them and putting some miles on?
Just wondering if I should set a hair high initially if they'll settle?

If mine did, barely anything since I measured other day and seem to be the same.

 

[Ready Go]

If mine did, barely anything since I measured other day and seem to be the same.

Also excellent!
I'll set tight to what I expect will be correct height then..hoping not to have to readjust.
Gonna back off 2 full collar turns for 2.75" lift, which should give me Level lift again at +1" F/R with the rear Eibach coils.
Thanks!

 

[CHeYeNNe71]

2.5 Triple Rate HD
JT application.

Jeep Gladiator 2.5" HD Triple Rate Rear Coil Springs (2020+, JT)

Jeep Gladiator 2.5" HD Triple Rate Rear Coil Springs (2020+, JT) Quick Glance: Free Length = 21.625" +/- .25" Spring Rate 1 = 188 lb/in Spring Rate 2 = 308 lb/in Spring Rate 3 = 396 lb/in Powder Coated Black MADE IN THE USA! Enhance your Jeep’s suspension with our premium coil springs...

claytonoffroad.com

I'd go the regular coils since I'm not hauling weight like you. I'm just worried about how much lift they might actually give. I don't want factory 2" rake and they're $300ish to find out they give me too much lift. Worse case I crank up the coilovers slightly maybe .5" max.... not sure I wanna do that though.

 

[Ready Go]

do measurement to double check.
when i asked "how many turns to bring it down 1"?" they told me "half to three quarters of a spin should do the trick"

and that is direct from the service department.

I had forgotten that I had this SS pic of Eibach's CO...1 FULL turn = 1/8" which jibes with Fox saying there's is 2 FULL turns = 1/4"

 

[Ready Go]

I'd go the regular coils since I'm not hauling weight like you. I'm just worried about how much lift they might actually give. I don't want factory 2" rake and they're $300ish to find out they give me too much lift. Worse case I crank up the coilovers slightly maybe .5" max.... not sure I wanna do that though.

Those are long, stacked coils (on top, at least)..you could certainly wack a coil (or two?) if they raised it too much.
If the coil measures say 3/8" thick, that's how much it'll drop..or 3/4" if two.
Keep in mind that those aren't linear rate springs though, so each side would need equal cuts..and also keep in mind that your wacking off the lowest rate part of the spring, so you're into the higher rates statically then.
Many don't like cutting coils, but I've done it succesfully for decades. Use a hand held grinder with a cutoff disc..takes a quick minute to cut off coil and the little bit of heat doesn't alter the coil temper or strength..just paint the exposed coil end to keep from rusting.
Just an option for you

 

[Ready Go]

I wish someone would make a purpose-built, bolt-on rear "weight jack"/"spring jack"/"jack plate" for the Ram rear coils.
They are basically a threaded, CO-style spacer plate that goes under the coil spring that can then be precisely adjusted to level side-to-side and front-to-rear to balance the ride height.
They look a bit like Mopar's 2" spacer that goes on top of the rear coil, but are threaded and go under the rear coil.
Any generic one will work, at least in theory, but for anyone offroading, I'd want that bolted to the axle to avoid the possibility of the spring or jack plate popping out or shifting.
These are often used by drag racers to lift and load the RR coil for better traction.

 

[boogielander]

Good advice!
As much as I like to plan out every detail before I start a project, I do imagine I'll have to readjust the front PEs ride height after installing them..because I'm so particular on dialing in my setup..NO WAY it's gonna be spot on, but I'm shooting for as close as possible.
Currently bogged down with summer stuff..hoping to install the Thuren rear U/L CAs next Monday, then get some miles on to "feel" out they're improvements..Foxs will be a couple/few weeks yet(?)..but I'm excited!

yeah plan to adjust them after install.
especially if you gonna mess with the spring rate/ collar from the get-go lol

i only adjusted the driver side a bit to compensate for the full tank weight and my fat as* the first time I put it on. i think i did 4 turns and it was perfect. YMMV though.

 

[boogielander]

Hey..quick question..has anyone noticed if the front PEs droop/sag after installing them and putting some miles on?
Just wondering if I should set a hair high initially if they'll settle?

mine sagged about year and half after install.
sagged while I was on the Alaska trip last year. I didn't notice it visually at all just felt a tad bit easier to get in and out of the truck, then I came home and went on that Henderson - Laughlin run and bottomed out a over those tiny jumps and realized something wasn't right. Checked nitrogen level and all was good. looked at pictures and realized I probably sagged. Took measurement and confirmed I went down about an inch from where it was supposed to be.

but that's me lol i don't take it slow, I have crap ton of weight, and I go on demanding terrains.
you should be ok.

 

[Ready Go]

yeah plan to adjust them after install.
especially if you gonna mess with the spring rate/ collar from the get-go lol

i only adjusted the driver side a bit to compensate for the full tank weight and my fat as* the first time I put it on. i think i did 4 turns and it was perfect. YMMV though.

I'm feeling 2-2.5L and 2R full turns, but am sure I will have to adjust ride height, valving, and tire psi forever to get happiness
I LOVE THIS SH*T though!

 

[boogielander]

I'd go the regular coils since I'm not hauling weight like you. I'm just worried about how much lift they might actually give. I don't want factory 2" rake and they're $300ish to find out they give me too much lift. Worse case I crank up the coilovers slightly maybe .5" max.... not sure I wanna do that though.

you should be ok with the non HD coils.
i think they'll give a tad bit under 2.5" (advertised 2.5") becuase our bed are heavier than the JT bed
and i don't think it matters if it was DT or JT, 2.5" is 2.5" lol