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#RKSUSPENSION - Made in U.S.A.

phone: 5182709822

LEAD TIMES:  Basic part orders 3-7 Business Days. Complete Short Arm/Mid Arm Systems 5-10 Business Days. Coil Over or Standard Long Arm Systems 2-3 Weeks.  Customized Orders 4-5 Weeks. (This is to Ship from Time of Order)

Rock Krawler 4.5" T-REX COILOVER "No Limits" Suspension System for Jeep Wrangler JL (Gas Models)

$8,709.58 - $10,424.70
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Rock Krawler 4.5" T-REX COILOVER "No Limits" Suspension System for Jeep Wrangler JL (Gas Models)

The Rock Krawler Suspension T-Rex Hybrid Long-arm Systems are the absolute best combination of on-road ride/handling and off-road ability you can get for your Wrangler JL 2 Door when keeping the gas tank in the stock location. Don’t shoot the messenger here, but Jeep killed the availability of putting full long arm systems in the front end of 2018 and newer 2 door applications due to the new fuel tanks that go up and over the crossmember all the way to the OEM front lower control arm mount on the frame. We promise it was not our idea! This vary fact is what made us create the Hybrid T-Rex System. The T-Rex is a full high clearance mid-arm front setup with our tried and true ultra high clearance 3 link rear conversion. This gives you the absolute best possible combination to enhance your 2 Door Wrangler Off-Road. The stock front suspension geometry on JL/JLU applications is really not terrible and is workable. The rear suspension geometry being a parallel 4 link with a track bar (i.e. 5 link rear) is really where the lack luster performance comes into play. This suspension arrangement naturally binds causing jacking when being tasked to perform off road. The Rock Krawler ultra high clearance 3 link with track bar removes the natural binding of stock rear suspension 100% allowing for ultra smooth suspension motion in the rear without jacking. A night and day difference. You also get the benefit of X2 rear suspension geometry gaining 4.5” of ground clearance under the rear axle without losing a single centimeter of rear shock travel! The rear roll center is raised significantly to further enhance handling and reduce side to side axle shifting while off-road. Make no compromise suspension geometry wise is our motto and T-Rex is no exception. All T-Rex control arms feature our exceptionally proven Adventure Series Joints for years of maintenance free use! The Term, "No-Limits" comes from the inclusion of our front sway bar links specifically designed for use with the factory electronic sway bar disconnect feature found standard in your Rubicon Wrangler! The sway bar links themselves come with factory sized hardware, a CNC machined billet aluminum center section, and Made in USA heim joints from FK bearing, once installed, just press the button and hit the rocks! Our system proves its durability and off-road performance every time you hit the streets or trail!

The Comp System (Front Coilovers w/ Rear Coil Combination) is ideal for those that want the adjustability and performance of coilover racing shocks up front, but still want to use their Wrangler to carry small loads or tow small trailers. There are two options for the Comp Systems you can choose from. The standard or Stage 1 System features 2 5/8" RRD Racing Coilovers w/ Remote Reservoirs up front paired with matching 2 5/8" RRD Racing Shocks w/ Remote Reservoirs in the rear for a well tuned package. Or you can opt for the Stage 2 Comp System which will include Fast CD (Compression Dampening) Adjusters on the coilovers and rear shocks for an even greater level of tuneability.

The Trail Runner System (Front and Rear Coilover Combination) is ideal for those that want the adjustability and performance of coilover racing shocks at all 4 corners. This combination maximizes the off road ability of your Wrangler and comes well tuned for the street. Rear coilovers perform amazing off road, but do not take changes in loading conditions too well so towing or adding a lot of weight to the bed area is not optimal for rear coilovers. The standard or Stage 1 System features 2 5/8" RRD Racing Coilovers w/ Remote Reservoirs front and for a well tuned package. Or you can opt for the Stage 2 Trail Runner System which will include Fast CD (Compression Dampening) Adjusters on the coilovers for an even greater level of tuneability. 

Like all of our systems, amazingly tuned ride and handling is our number one priority! It is no different with our coilover systems. Coilovers add another level of tuneability for the vehicle owner to further enhance the ride, handling and off road performance to their liking. Install exceptional value, and be the foundation for every adventure whether it be on the Street or on the Trail with a Rock Krawler Coilover Suspension System! Thank you for considering Rock Krawler Suspension.

System Benefits:

  • Excellent Highway Ride & Off-Road Ability
  • Maintenance Free/ High Ability Control Arms Featuring our Award Winning Adventure Series Joints
  • Full High Clearance Design
  • 4 Link Mid-arm Front Suspension
  • 3 Link Long-arm Rear Suspension
  • 4.5" Rear Clearance Gain from the X2 Axle Bracket System
  • Adjustable Rear Anti-Squat Featuring X2 Geometry
  • Designed to be the Ultimate Compromise between On Highway Handling and Hard Core Off-Road Ability
  • Lifetime Warranty Coverage

System Includes:

  • (4) Triple-rate Coil Springs
  • (4) Spring Correction Seats
  • (1) Front Adjustable Anti-wobble Track Bar
  • (1) Front "No Limits" Sway Bar Kit
  • (2) Front High Clearance Adjustable Lower Control Arm
  • (2) Front Adjustable Upper Control Arm
  • (2) High Clearance Lower Long-Arms
  • (2) Rear Extended Sway Bar Links
  • (1) Rear Upper Control Arm
  • (2) Rear Lower Control Arm
  • (1) Rear Long-arm Mount Kit
  • (1) Rear Upper Frame Mount
  • (1) Rear Track Bar Mount
  • (1) Rear Adjustable Track Bar
  • (1) Rear Axle Truss
  • (1) Rear Brake Line Mount Kit
  • (2) Rear Shock Mount
(*DEPENDING ON SHOCK PACKAGE CHOSEN*)
  • (1) Front Shock Mount Kit

Shock Information:

  • All RRD Shocks and Coilovers are Designed and Built in-house

COMP SYSTEM STAGE 1 (Coilover Front/Coil Spring Rear)

COMP SYSTEM STAGE 2 (Coilover Front/Coil Spring Rear) W/ Fast CD Adjustable Shocks

TRAIL RUNNER SYSTEM STAGE 1 (Coilovers Front and Rear)

TRAIL RUNNER SYSTEM STAGE 2 (Coilovers Front & Rear) W/ Fast CD Adjustable Shocks

Wheel Fitment:

Rubicon Fitment Recommendations

  • 37” Tall Tires – Recommend 4.5” of Back Spacing
  • 40” Tall Tires – Recommend 3.5” of Back Spacing

Tire Fitment:

Rubicon with Full OEM Fenders

  • 37”/38” Tall Tires (3” Bump Stop Height Recommended)

Rubicon with Trimmed or High Lined OEM Fenders

  • 40” Tall Tires (3” Bump Stop Height Recommended)

General Notes:

  • All lift heights based on Rubicon models for standard style build (i.e., front bumper and winch, rear bumper and full-size spare.
  • If building with a spare delete, we recommend dropping 1” in coil lift height for the rear.
  • If building an overland or heavily upfitted build in the back, we recommend upsizing 1” in coil lift height for the rear.
  • Recommend a new front C.V. driveshaft for all front shocks with max. extended length greater than 29"
  • Requires welding of the Rear Long Arm Mounts
  • Requires removal of the OEM frame side upper/lower rear control arm mounts
  • Requires removal of the OEM axle side rear lower control arm and track bar mounts
  • Requires modifying the OEM rear shock mounts and welding of the raised rear upper shock mounts
  • Recommend installing limiting straps to avoid over extension of suspension components after vehicle is all set up
Drive Type:
4WD
Compatible Engine Options:
2.0L 4 Cylinder Turbo, 3.6L Pentastar V6, 3.6L Pentastar W/ Etorque
Fuel Type:
Gas
Application:
2 door Wrangler Rubicon Trim Level