New Jeep Wrangler JL Suspension & Fox Shocks Availability

New Jeep Wrangler JL Suspension & Fox Shocks Availability

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JEEP WRANGLER JL SUSPENSION OVERVIEW

Front Suspension

Solid axle, link coil, leading arms, track bar, coil springs, stabilizer bar
Electronic sway-bar disconnect system — standard on the Rubicon

Shock type

Extended Length: 21.96"

Collapsed Length: 15.96"

  • JL Sport: Gas charged twin tube shock absorbers with full displacement Multi-Tuned Valve (MTV) technology
  • JL Sahara: High pressure gas charged monotube shock absorbers with MTV technology
  • JL Rubicon: High pressure gas charged monotube shock absorbers with MTV technology and hydraulic rebound stop

Rear Suspension

Solid axle, link coil, trailing arms, track bar, coil springs, stabilizer bar

Shock type

Extended Length: 24.5"

Collapsed Length: 17.25"

  • JL Sport: Gas charged twin tube shock absorbers with full displacement MTV technology
  • JL Sahara: High pressure gas charged monotube shock absorbers with MTV technology
  • JL Rubicon: High pressure gas charged monotube shock absorbers with MTV technology and hydraulic rebound stop

As you can see, from Sport to Sahara to Rubicon, the shock absorbers gradually increase in capabilities. A monotube shock is an upgrade over a twin tube shock, there are less moving parts, there is a larger active piston for more consistent damping, and heat dissipation is better as the oil in the shock is in direct contact with the body, and the body will shed heat better than two bodies.

The Hydraulic Rebound Stop within the main shock absorber body, is attached to the working piston. If the rebound stroke of the shock (extension cycle) achieves max travel, the internal Hydraulic Rebound Stop will then act as an internal shock absorber for the working piston.

This diagram, taken from US Patent US5024301 shows precisely how this works. Figure 1 shows the shock, oriented vertically, with the piston rod coming out of the top of the shock. The figure 14/15 is the active piston, and when this piston reaches the top of the shock at figure 30, the rebound stop activates. Figure 2 and 3 on the second diagram shows the shock in partial and full rebound, which is compressing the internal hydraulic rebound stop (fig3).

SHock Absorber Hydraulic Bump Stop Diagram SHock Absorber Hydraulic Bump Stop Diagram

What does all this mean for the ride in a Wrangler JL Rubicon?

Going over bumps, rocks, and other obstacles will be a more forgiving ride. As the shock rebounds from being compressed on an obstacle, any maxxing out the droop or extension of the shock will be dampened first by the internal bumpstop before transferring that energy to the vehicle, and then the passenger.

Available Wrangler JL Shocks

Fox

Fox has redeveloped their 2.0 Performance shock offerings for the new JL, providing a softer response on the highway, while still maintaining offroad trail capability, " New look & improved tune for light trail/on-road comfort " Translating marketing speak, this basically means they softened up the compression response for the beginning range of the shock for softer highway and paved road feel, while still maintaining firmer compression at the more extreme ranges of the shock for offroad handling.

Good move, maybe we'll get less people trading in their FOX 2.0 for Bilstein 5100s now, and an overall happier experience.

Lift Position Part # MSRP
0-1.5" Front 985-24-171 $159.95
0-1.5" Rear 985-24-172 $159.95
2-3" Front 985-24-177 $159.95
2-3" Rear 985-24-178 $159.95
3.5-4" Front 985-24-179 $169.95
3.5-4" Rear 985-24-180 $169.95
4.5-6" Front 985-24-181 $169.95
4.5-6" Rear 985-24-182 $169.95
All Stabilizer 985-24-173 $159.95

Rancho

Lift Position Part # MSRP
0-2" Front - RS5X RS55063 $53.95
0-2" Rear - RS5X RS55064 $53.95
0-2" Front - RS9X RS999063 $113.94
0-2" Rear - RS9X RS999064 $113.94
2.5-4" Front - RS5X RS55065 $53.95
2.5-4" Rear - RS5X RS55066 $53.95
2.5-4" Front - RS9X RS999065 $113.94
2.5-4" Rear - RS9X RS999066 $113.94
4.5-6" Front - RS5X RS55067 $53.95
4.5-6" Rear - RS5X RS55068 $53.95
4.5-6" Front - RS9X RS999067 $113.94
4.5-6" Rear - RS9X RS999068 $113.94

Teraflex / Falcon

Lift Position Part # MSRP
0-1.5" Front and Rear - 4 Door 11-01-21-400-000 $698.99
0-1.5" Front and Rear - 2 Door 10-01-21-400-000 $698.99
2-3" Front and Rear - 4 Door 11-01-21-400-200 $698.99
2-3" Front and Rear - 2 Door 10-01-21-400-200 $698.99
All Stabilizer 09-02-21-110-000 $249.99
All Adjustable Stabilizer 09-02-22-110-000 $349.99

ICON Vehicle Dynamics

Lift Position Part # MSRP
2-3" Front 26523 $167.95
2-3" Rear 26524 $167.95

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