LJ 3.5 X-Factor Long Arm

LJ 3.5 X-Factor Long Arm

Rock Krawler Suspension
Regular price
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Sale price
$ 2,977.89
Unit price

- 2004 to 2006 Jeep LJ Wrangler Unlimited and Rubicon Unlimited

Our LJ 3.5 X-Factor Long Arm systems feature our revolutionary independent 3 link front end with track bar. This design dominates the professional rock crawling world while maintaining excellent streetabiliy and handling. Our full length upper control arm keeps caster change to a minimum and the front upper bushing at the differential is replaced with a build a ball joint for maximum articulation.

This system features a triangulated 4 link assembly in the rear eliminating the need for a rear track bar. The lower control arms feature a high clearance design to maximize ground clearance and cross over angles, are made of 2.0" O.D. 7/16 wall DOM alloy steel, use a Pro Flex Joint at the frame connection and a Monster Krawler Joint at the axle connection. Our modular skid plate design clam shells the frame top and bottom with no side drilling required. With the 3 piece construction, servicing of the driveline is a snap and does not involve any suspension modifications. The frame rail members can be bolted in or welded on. We use a weld in cradle and tie-in plate made from thick laser cut steel to add structure to the rear axle.

System Benefits:
Excellent highway ride and handling
High clearance-adjustable lower control arms made of custom 2.0" O.D. 7/16 wall DOM alloy steel
Revolutionary independent three link front end for awesome flex and control
Rear triangulated 4 Link that allows for removal of the rear track bar and provides anti-squat for unparalleled climbing ability! Triangulated 4 links are more robust than tri link designs
Skid plate mounting design that adds structure to the frame, provides a 1" gain in ground clearance, has a smooth bottom and is made from 1/4" thick steel
Weld on rear cradle for greater rear axle strength
RTI 1400+ on a 20 degree ramp
Allows for 33" tires
Limited Lifetime Warranty
Upgradeable to any of our higher lift long arm systems or coil over products

System Includes:
(4) Triple rate coil springs
(4) High misalignment/adjustable lower long arms
(1) Adjustable front upper control arm
(1) High misalignment/adjustable front track bar
(2) Front adjustable sway bar disconnects
(2) Front sway bar link straps
(1) Skid plate and skid plate mounting brackets
(2) Rear upper triangulated 4 link arms
(1) Rear triangulated 4 link mounting cradle/axle truss
(3) Extended stainless steel brake lines
(2) Extended rear sway bar links
*includes hardware and detailed instructions.

1. Available for most common axle combinations (Dana 30, 44, 60, Ford 8.8, Dynatrac ProRoc's). Can be adapted to fit Currie Rock Jock 60's and Solid 60's by rotating the rear cradle into the proper position instead of using the alignment tool provided.

2. Requires a SYE with C.V. Driveshaft.

3. With long rear uppers, a custom cat back exhaust is required.

4. Rubicon Edition TJ's require a new rear driveshaft.
5. Vehicles equipped with 4 speed automatics will remove the factory automatic transmission skid plate to allow for proper front driveshaft travel.

6. Requires removal of the OEM rear upper control arm mounts off the rear axle.

7. Recommend using rear shock relocation brackets or rear shock shifters for some applications.

8. Choose your bump stop lengths after you choose your wheel/tire and fender combination.

9. Typical wheel fitment for a 12.5 wide tire is a 15 x 8 with 3 3/4" of back spacing.


OEM Fenders Up to 33" Tires
Flat Fenders Up to 35" Tires

RRD Race Shocks

Front: RRD02050
Rear: RRD02051
Requires 3" bump stops front and rear

Front: RRD02050RR
Rear: RRD02051RRD, RRD02051RRP
Requires 3" bump stops front and rear

Bilstein 5100 shocks:
Front: 24-187190 2in bump stop
Rear: 33-185934 2in bump stop


Generic Front Shock
Recommendation with 2" bump stops - 17" Collapsed to 27" Extended

Generic Rear Shock
Recommendation with 2 " bump stops - 16" Collapsed to 26" Extended