Soon-to-be JKUR owner needs suspension advice - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-25-2014, 03:24 PM   #1
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
Soon-to-be JKUR owner needs suspension advice

Hey all! Soon-to-be first time Jeep owner here... Looking to install a lift virtually as soon as I get it, and have some questions...

To start, the Jeep will be a 2014 JK Unlimited Rubicon with a manual transmission. It will be taken off road fairly frequently. Planning on equipping 35" Wrangler MT/Rs on 17" Wheels (don't know what kind yet).

I've been looking at the Rubicon Express suspension kits and am trying to decide between the 3.5" and 4.5" lifts.
My understanding is that with the 3.5" lifts, ONLY the front drive shaft will need to be replaced. (no TC adapters)
While with the 4.5" lifts, both the front and rear drive shafts will need to be replaced. According to RE website, I would need not only drive shafts, but new a new yoke and flange adapter...
Both lifts will require an exhaust loop bypass I believe.

Really just looking for confirmation about this at the moment. Any advice would be greatly appreciated..
Mud

Mudbass7 is offline   Quote Quick Reply
Old 06-25-2014, 03:48 PM   #2
Jeeper
 
derf's Avatar
 
Join Date: Oct 2012
Location: Cedar Rapids, IA
Posts: 1,352
Just a question. Why not a 2.5" lift?

I have the 2.5" Rubicon Express lift on my JK and it fits 35's just fine. It doesn't require any driveshaft or exhaust modifications.

If you're set on taller, there's nothing wrong with that. Just wanted to make sure you knew of all the options.

Oh, and if you prefer an older style of wheel, I highly recommend the Mickey Thompson Classic III. I'm running their 17x9" with the 4.5" back spacing with Goodyear Duratracs and they fit great. No need to modify any steering stops or run spacers of any kind. Any wheel in that size with that back spacing should fit just as well if you prefer a different style, no matter what height lift you choose.

__________________
2012 JK - 3.6/NSG370/NP241/D30/D44 - Grimm Jeeper
1986 J10 - 360/700R4/NP208/D44HD/D60FF - Truck Norris

My gear ratio calculator
derf is offline   Quote Quick Reply
Old 06-25-2014, 04:31 PM   #3
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
Thanks Derf, but I am pretty set on at least a 3.5" lift. Currently looking at some rugged ridge wheels and I'm liking them. Though, those MTs are CLEAN
Mudbass7 is offline   Quote Quick Reply
Old 06-25-2014, 04:58 PM   #4
Jeeper
 
derf's Avatar
 
Join Date: Oct 2012
Location: Cedar Rapids, IA
Posts: 1,352
Quote:
Originally Posted by Mudbass7 View Post
Thanks Derf, but I am pretty set on at least a 3.5" lift. Currently looking at some rugged ridge wheels and I'm liking them. Though, those MTs are CLEAN
Sounds good. I can't offer advice on taller lifts. I'm sure someone else will come along and answer your questions.

And thanks on the wheels. I'm a fan of the old school look.
__________________
2012 JK - 3.6/NSG370/NP241/D30/D44 - Grimm Jeeper
1986 J10 - 360/700R4/NP208/D44HD/D60FF - Truck Norris

My gear ratio calculator
derf is offline   Quote Quick Reply
Old 06-25-2014, 05:32 PM   #5
Jeeper
 
highwayman's Avatar
 
Join Date: Dec 2010
Location: Yucaipa
Posts: 682
Plan on both. U can probably run the rear until the boot let's go, if u need to. Keep in mind heights are approximate. You'll likely be taller than 3.5. Most companies take into acct extra weight from heavy bumpers, etc, with their springs.

The driveshafts will have flanges.

For your money, Id also check out other options. TF, RK, first before dropping cash on RE, if youre not 100% sold on RE.
highwayman is offline   Quote Quick Reply
Old 06-25-2014, 05:42 PM   #6
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
Quote:
Originally Posted by highwayman View Post
For your money, Id also check out other options. TF, RK, first before dropping cash on RE, if youre not 100% sold on RE.
What's the difference between them?
Mudbass7 is offline   Quote Quick Reply
Old 06-25-2014, 05:57 PM   #7
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
This is essentially where I am at with the RE Kits... Prices are for parts only (including monotube shocks), don't inclue tax, labor, or possible sales/discounts.... I'm looking at either the 4.5 short arm vs the 3.5 long arm... I'm not sure which one would ride smoother/provide more off-road capability or reliability... input on that would be nice... depending on funds, i MAY end up with a 4.5 long arm, at which point the decision is between the 4-LINK system or the regular.. The TF kits seem to cost more and not offer as much from what i can see... Plus RE has the warranty, not sure how great it is though
Attached Thumbnails
Click image for larger version

Name:	Suspension.jpg
Views:	61
Size:	124.2 KB
ID:	1240250  
Mudbass7 is offline   Quote Quick Reply
Old 06-25-2014, 06:31 PM   #8
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
The RK is looking nice so far, much better warranty and roughly the same price it seems... AND made in the US!How is their build quality? Anyone have extensive experience with them? (never heard of them, but they look nice)

Thanks Highwayman!
Mudbass7 is offline   Quote Quick Reply
Old 06-25-2014, 07:15 PM   #9
Jeeper
 
cornfedksboy's Avatar
 
Join Date: Dec 2012
Location: Kansas
Posts: 1,007
Quote:
Originally Posted by Mudbass7 View Post
The RK is looking nice so far, much better warranty and roughly the same price it seems... AND made in the US!How is their build quality? Anyone have extensive experience with them? (never heard of them, but they look nice) Thanks Highwayman!
They are highly recommended for performance and quality on this site. I don't have experience, but when I do lift, it will likely be RK.
cornfedksboy is offline   Quote Quick Reply
Old 06-25-2014, 07:20 PM   #10
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,884
What do you want to know ?

RK is one of the better suspension manufactures out there.
kjeeper10 is online now   Quote Quick Reply
Old 06-25-2014, 08:21 PM   #11
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
Quote:
Originally Posted by kjeeper10 View Post
What do you want to know ?

RK is one of the better suspension manufactures out there.
Well, first, how does it compare to the RE Extreme duty long arm system? what shocks would you reccomend pairing with them?

Forgive me, but I'm kinda "special" when it comes to knowledge about suspension systems.

I see in the way of 3.5" long arm systems, they have
JK 3.5 X Factor Long Arm System
how do those add up compared to
Rubicon Express Part RE7363M - 3.5 Inch Extreme-Duty Long Arm Lift Kit with Mono Tube Shocks-WS3 (which includes shocks, without shocks it's 2999.99

Even more confusing to me is that they have a 5.5" long arm kit that costs less than one of their 3.5" systems, and i have no idea why... (edit- figured it out....)

sorry... i know that's probably not very specific.... What is the difference between their 3.5 x factor kit and the rubicon express 3.5 extreme duty kit- what does one have or not have that i will need or could otherwise benefit from? is one easier to instal/maintain than the other? I don't have the knowledge to install it myself, ever though i would very much like to... so would one cost more to install?
Mudbass7 is offline   Quote Quick Reply
Old 06-25-2014, 08:55 PM   #12
Jeeper
 
AndrewsJeep's Avatar
 
Join Date: May 2011
Location: Coconut Creek FL
Posts: 293
Adding photo

I'll chime in 2.5 AEV Dualsport gave me more than enough lift?? 35" check em out
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	48
Size:	226.2 KB
ID:	1240730  
AndrewsJeep is offline   Quote Quick Reply
Old 06-25-2014, 09:11 PM   #13
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,884
RE uses radius arms iirc ?
Not a ideal way to set up a linked suspension. if not done right. You'll be eating through bushings like nobody's business. The only radius arm i would even consider ... Clayton's (front only)
Beefed up mounts and huge johny joints.
Google "radius arm" for more info.

RK is solid. Triple rate coils. Solid arms along with the new Krawler joints. Really can't go wrong .. These guys ran KOH
Check out their 3 link rear kit also.

For shocks .. RK likes to run Bilstein 5100's or their own brand.
kjeeper10 is online now   Quote Quick Reply
Old 06-25-2014, 09:12 PM   #14
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,884
What kind of wheeling you do?
What size tires ?
kjeeper10 is online now   Quote Quick Reply
Old 06-25-2014, 09:23 PM   #15
Supporting Member Commercial Member

WF Supporting Member
 
Daniel_M's Avatar
 
Join Date: Nov 2011
Location: Arizoner
Posts: 2,406
Mudbass, I can get you hooked up. I sell RK, TF, Synergy, RE, ProComp, Skyjacker, Rancho etc...

Shoot me a PM and I can get you a quote on what you are looking for.

Thanks
-Dan
__________________
-Dan, Owner
RockRaider4x4 - PM me for a quote
Free shipping on most items
Suspension package deals available
Daniel_M is offline   Quote Quick Reply
Old 06-26-2014, 12:18 AM   #16
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
Thanks Daniel M (it was kindof a trip seeing my first name and last initial pop up...).

And Kjeeper, going to start with 35's MAYBE get some 37's later on, but that's a big maybe.
As far as wheeling, theres a bunch of trails in the sierra-nevada range (just ran the moonlight madness poker run on bald mountain), snow runs, and the sand dunes in pismo would all be the most commone, the rubicon, moab, big bear lake probably once, maybe twice a year
Mudbass7 is offline   Quote Quick Reply
Old 06-26-2014, 05:07 AM   #17
Jeeper
 
highwayman's Avatar
 
Join Date: Dec 2010
Location: Yucaipa
Posts: 682
RK is way above and beyond anything RE. Better bushings. Looks like you've seen the light, but if u must do RE, avoid anything RE that isn't at least the 4 link. Radius arm set up isn't the best and is a never ending bushing replacement if flex is in your future.

RK 3.5 (2.5 w/flat fenders) Bilstein shocks is the way to go as a start point, IMHO. 35' s and ability to upgrade to 37's easily.

Like a VW vs Porsche comparison between those two manufacturers.
highwayman is offline   Quote Quick Reply
Old 06-26-2014, 08:46 AM   #18
Supporting Member

WF Supporting Member
 
lennyk1313's Avatar
 
Join Date: Jan 2014
Location: NJ
Posts: 443
I have RK, and its great. The arms are solid, and springs are triple rate. Their warranty is also a top notch, but hopefully I won't need to use it
__________________
2014 - JKURX Anvil

My Build Thread
lennyk1313 is offline   Quote Quick Reply
Old 06-26-2014, 10:13 AM   #19
Jeeper
 
Join Date: Nov 2013
Posts: 85
Quote:
Originally Posted by Mudbass7 View Post
The RK is looking nice so far, much better warranty and roughly the same price it seems... AND made in the US!How is their build quality? Anyone have extensive experience with them? (never heard of them, but they look nice)

Thanks Highwayman!
So disappointed. LOL.

If you have any questions at all about our products, feel free to give us a call. We have some knowledgable sales staff here that build a lot of Jeeps. We can give you the facts of what you need and do not need wether you choose our products or not..

For what is worth 2.5 will get you home for 35's....

Good luck with your build.

RK
Rock Krawler Sus. is offline   Quote Quick Reply
Old 06-26-2014, 12:36 PM   #20
Jeeper
 
Join Date: May 2014
Location: Birmingham, Alabama
Posts: 116
i went the budget route.

2.5 coil spacer lift
1.25 body lift
total only $350 or so.

plenty of lift. did not compromise my ride

still have stocks which suffice but when the good deal on 35's come along I'll be getting a set.
__________________
2014 JKUR 6 spd
JKURubicon is offline   Quote Quick Reply
Old 06-26-2014, 02:57 PM   #21
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
MY BUILD IS EVER EXPANDING! IM OUT OF CONTROL!

So far I've decided on a manual transmission, with an RK suspension + Bilstein shocks. 35" tires and either 4.88 or 5.13 gears.

If I were to go with the 5.5" X Factor Long Arm suspension i know i would need front and rear drive shafts.
Could anyone point me to the appropirate shafts for said suspension, as well as any other parts that would be needed?

I know it's probably overkill, but overkill is underrated...
Mudbass7 is offline   Quote Quick Reply
Old 06-26-2014, 03:11 PM   #22
Supporting Member Commercial Member

WF Supporting Member
 
Daniel_M's Avatar
 
Join Date: Nov 2011
Location: Arizoner
Posts: 2,406
4.88 Will be plenty. You will be good up to 37's and tolerable with 40's. As for shafts, I am a big proponent on Krawl Off Road driveshaft. I can give you a quote on that too and gears.

-Dan
__________________
-Dan, Owner
RockRaider4x4 - PM me for a quote
Free shipping on most items
Suspension package deals available
Daniel_M is offline   Quote Quick Reply
Old 06-26-2014, 03:44 PM   #23
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
PM Sent Dan, Thanks for your input. I agree, the 4.88 will most likely be enough. At this moment really trying to decide on whether or not I want the 3.5 or 5.5 lift. I know the 3.5 will be enough, but depending on the price difference i might just go big because i can.
Mudbass7 is offline   Quote Quick Reply
Old 06-26-2014, 03:56 PM   #24
Jeeper
 
2013 Moab's Avatar
 
Join Date: Jan 2014
Location: Sullivan Cnty, NY
Posts: 852
There is a lot of welding involved with that 5.5" system you linked to, as you stated that you are "special" when it comes to suspension, how are you with welding.
2013 Moab is offline   Quote Quick Reply
Old 06-26-2014, 04:07 PM   #25
Jeeper
 
ScarletVarlet's Avatar
 
Join Date: Oct 2013
Location: Middle of the West Coast, when home. Middle of the desert, stuck in sand, when not home.
Posts: 314
Images: 1
I started looking at 2.5" lift, but then considered the benefits of other lift options. 4.5" is higher than I want to go, so 3-3.5" is where I'm now looking.

As I realized my plans were still fluid I decided to take a step back and wait on the lift until I'm settled on everything I need to have and do.
ScarletVarlet is offline   Quote Quick Reply
Old 06-26-2014, 04:16 PM   #26
Supporting Member

WF Supporting Member
 
jcb-memphis's Avatar
 
Join Date: Aug 2013
Location: Indiana
Posts: 164
I have a 2.5" and like it...happens to be AEV and it has a very good ride and has a complex tune overall that is good on and off road....really nice all over. That balance is hard to get- my rovers with OME stuff were nevre as nice.

The hardcore RK stuff is amazing...if that is what you want, that may be superior. Key is defining your needs versus your wants...I was warned that if I went over 2.5, things would break/wear/cost more over time in a really big way. This is my first Jeep..had been a rover guy...the OME and BritParts stuff I had before was far less sophisticated than this AEV stuff.
__________________
jcb-memphis


JKUR 2014 Anvil "Goose"

Priors: Double solid axle Land Rovers (rrclwb, d2, d110)
jcb-memphis is offline   Quote Quick Reply
Old 06-26-2014, 04:20 PM   #27
Jeeper
 
trailless's Avatar
 
Join Date: Jan 2014
Location: Tennessee
Posts: 560
Quote:
Originally Posted by Mudbass7 View Post
Could anyone point me to the appropirate shafts for said suspension, as well as any other parts that would be needed?
I'd highly recommend going with a company that specializes in driveshafts, such as JE Reel, Adams, Tom Woods. Whichever one you do get, make sure you get Spicer or neapco U joints. The Tom Woods gold seal U joints aren't the best. Other than that, drive shafts are basically all made the same. Choose whichever one you like best.

BTW I'd recommend going with a 1350 driveshaft. Its not that much more and you never know if you want to go bigger tires.
trailless is offline   Quote Quick Reply
Old 06-26-2014, 04:44 PM   #28
Jeeper
 
Join Date: Jun 2014
Location: California
Posts: 29
Quote:
Originally Posted by 2013 Moab View Post
There is a lot of welding involved with that 5.5" system you linked to, as you stated that you are "special" when it comes to suspension, how are you with welding.
I'm very good at welding. I won't be installing the kit though, due to my specialness
Mudbass7 is offline   Quote Quick Reply
Old 06-26-2014, 05:54 PM   #29
Jeeper
 
2013 Moab's Avatar
 
Join Date: Jan 2014
Location: Sullivan Cnty, NY
Posts: 852
Quote:
Originally Posted by Mudbass7 View Post
I'm very good at welding. I won't be installing the kit though, due to my specialness
LOL, okay just wanted to make sure you're aware of that not trying to convince you one way or the other. Enjoy your new ride.
2013 Moab is offline   Quote Quick Reply
Old 06-26-2014, 06:25 PM   #30
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,884
Quote:
Originally Posted by Mudbass7 View Post
PM Sent Dan, Thanks for your input. I agree, the 4.88 will most likely be enough. At this moment really trying to decide on whether or not I want the 3.5 or 5.5 lift. I know the 3.5 will be enough, but depending on the price difference i might just go big because i can.
Keep in mind .. Once you go over 4" running a aftermarket DS. Pinion angle takes importance over caster in the front. The factory caster/pinion separation is fixed at 6 degrees. Running a aftermarket shaft requires the u-joint to run no more then about 5 degrees (pinion angle/drive shaft angle)
A JK with 2* caster drives and handles like shit.
You'll see JK's with higher lifts and running bigger tires (37-40's) ... Also running a aftermarket housing. Aftermarket housings like Prorock, TF, currie have more caster built into them. The 6 degrees is increased to 10 degrees to allow both good caster and pinion angles.

kjeeper10 is online now   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 07:40 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC