Does it matter how much of a lift you have? i know that they are adjustable... so i'm kind of being captain obvious i just want to make sure...

I would say up to a 4" lift is ok. Anything higher than that, you'll want to go with a long-arm kit. I have these on a 4" lift, and the ride is pretty rough because of the suspension geometry (any short-arm control arms on that tall of a lift are going to be rough).

I added a 3.5 inch lift to my jku and now the back tire is to close to frame. Will this correct it?

You will need both upper and lower adjustable control arms to move the axel back to its original position.

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Rubicon Express RE3757 Rear Upper Super-Flex Adjustable Control Arm for Jeep JK

Rubicon Express RE3757 Rear Upper Super-Flex Adjustable Control Arm for Jeep JK

Product ID: 12612296

Details

Brand
Rubicon
Fit Type
Vehicle Fit
Auto Part Position
Upper
Orientation
Drivers Side
Manufacturer
Rubicon

🚙Optimized for Jeep JK

⚙️Precision adjustable fit

🛠️Heavy-duty 10 lb build

Description

🚙 Elevate your Jeep JK’s off-road game with precision and power!

TAILORED FOR JEEP JK - Vehicle-specific design ensures perfect compatibility and performance.
TRUSTED INDUSTRY LEADER - Rubicon Express quality backed by warranty for peace of mind.
ADJUSTABLE SUPER FLEX CONTROL - Fine-tune your suspension for superior off-road articulation and ride comfort.
DRIVERS SIDE PRECISION FIT - Engineered for exact placement on the upper rear driver’s side for seamless installation.
DURABLE HEAVY DUTY CONSTRUCTION - Built to withstand rugged terrain with a robust 10-pound steel frame.

The Rubicon Express RE3757 Rear Upper Super-Flex Adjustable Control Arm is a heavy-duty, vehicle-specific suspension upgrade designed for Jeep JK models. Weighing 10.05 pounds and crafted for the driver’s side upper rear position, it offers adjustable flexibility for enhanced off-road performance and durability, backed by Rubicon Express’s trusted warranty.

Specifications

Brand	Rubicon Express
Fit Type	Vehicle Specific Fit
Auto Part Position	Upper
Orientation	Drivers Side
Manufacturer	Rubicon Express
UPC	614901440652
Global Trade Identification Number	00614901440652
OEM Part Number	RE3757
Item Weight	10.05 pounds
Product Dimensions	24.5 x 4.3 x 4.3 inches
Item model number	RE3757
Is Discontinued By Manufacturer	No
Manufacturer Part Number	RE3757

Reviews

V**G

Much stronger than stock and look better.

Replaced my stock arms and extended these 1/4 inch over stock to push my axle back a smidge. They worked perfect. They were a bit of a pain for a driveway install but I got it done. It wasn't their fault as I believe any upper arm would have been just as difficult. Making them longer than stock is what made it more different to get them in place. I liked that the grease fittings on the frame side can be installed on either side of the bushing and comes with a plug for the hole not used.

9.08.2023

G**N

Works with 3" lift

I set them at 17 11/16". I didn't measure drive line angle, but it got my spring away from the track bar bolt on the the relocation bracket. Seems to have improved the ride a bit.

18.09.2022

M**L

Easy to install

If you lift your Jeep you'll need a pair of these bad boys to correct your pinion angle. Easy to install in the garage with a floor jack and basic tools.

18.03.2019

A**R

Four Stars

very good quality as expected

12.07.2018

A**R

Solid

Good solid bars. Feel well made.

14.07.2019

N**E

They're alright.

Didnt have the grease fittings.

9.07.2019

M**L

For 3.5" short arm lift JK

Shipped on time and as advertised. Bought uppers and lowers front and rear for 2015 JK.

12.05.2017

A**R

control arms

Love these my jeep feels a lot more responsive

16.03.2016

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