4.5 Inch JT Silverback "No-Limits" System
$4,467.11
Suspension JT 4.5 inch Silverback "NO-LIMITS" Long-Arm System is the ultimate in compromise between daily driver/hard core off-roader. The Silverback systems combine the benefits of a full high clearance 4 link front suspension with a high clearance triangulated 4 link, Mid-arm rear suspension. Say goodbye to greasing your joints, our service free longarm system is here to stay. In every single control arm, we have our Adventure series joint center, which isolates harsh road vibrations equivalent to an OE bushing, includes high misalignment, and is fitted with a steel sleeve (that the bolt passes through) which rotates freely on a additional Teflon lined inner sleeve to insure that you are never chafing, twisting, or deforming the bushing material inside the housing as you blast through the mud, sand, sleet, salt, snow, dirt and dust. To finish it off, as you tighten your control arms into the mounts, the sleeve of the joint is engineered to be the buffer between the clamping force of a bracket, which means that as you tighten everything, you are not compressing the bushing. This all makes for an incredibly long lasting joint that never requires a drop of grease, and makes zero noise inside the housing. "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 Gladiator! 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! Say goodbye to greasing your joints, our service free longarm system is here to stay. The triangulated 4-link rear assembly keeps the rear axle perfectly centered; allows for removal of the rear track bar, eliminates rear suspension bind, and the cross talk of the front and rear track bar arrangement, therefore greatly smoothing the highway ride. Our industry leading, Adventure - X mid-Arms feature adjustable upper and lower control arms and offer a total of 70 degrees of misalignment when paired with our Adventure series Joints at the frame connection and at the axle. The inherent bind in a factory JT control arm is greatly reduced. With so much adjustability, it allows you to precision tune the JT's caster and pinion angle front and rear. Driving you home with the most comfortable ride possible in a Gladiator, are our TRIPLE RATE front coils and QUAD RATE rear coils. All 4 coils work together to achieve excellent on-road comfort that we feel is better than the OEM springs. The coil itself is built with the proper "Free-length" for off-road articulation and stays firmly seated in the coil bucket (as long as a proper length shock is installed), and overall, a very controlled reaction to bumps, rocks, sand, mud and whatever else you can manage to throw at them! JT systems include correction pads that reduce the spring bow inherent in the factory set up. The provided track bar geometry corrections, up front and removal of it in the rear in favor of triangulation, lets you perfectly center the axles so there is no compromise in on road handling.
Quantity
System Benefits
Complete bolt in system
Excellent highway ride and handling
The best off-road ability of all Mid Arm Systems
Improved rear roll center
Tuned Triple Rate Coils
Spring Correction Seats
Vehicle lean correction
Upgradable to RK Longarm System
Best Technical support in the industry
Jeep remains level on all 4 corners
System Includes
(1) Weld-on front long arm mounting system
(1) Heat Shield Products Sticky Shield Kit
(1) Front adjustable anti-wobble track bar
(2) High clearance Adventure-X2 front lower control arms
(2) Adjustable front upper control arms
(1) Front sway bar disconnect kit
(2) Triple rate front coil springs
(2) Quad rate rear coil springs
(4) JT coil spring correction seats
(2) Weld-on rear frame side long arm mounts
(2) Rear adjustable lower control arms
(2) Rear adjustable upper control arms
(2) Rear spring pads
(2) Extended Rear brake lines
(1) Carrier bearing drop Bracket
(2) Adjustable rear sway bar links
(1) Rear Bolt on Pro-X Cradle (Welding optional)
(2) Rear triangulated upper arms.
(*DEPENDING ON SHOCK PACKAGE CHOSEN*)
Bumpstops are included with all shock options
IF YOU CHOOSE NO SHOCKS - BUMPSTOPS CAN BE PURCHASED SEPARATELY - RK07464
2.25"RRD shocks / Coilovers w/Coils / 2.625 RRD Remote Reservoir Shocks
Shock Information
Generic Front Shock Length – 18.31” Collapsed/ 30.31” Maximum Extended
Generic Rear Shock Length – 19” Collapsed/ 31” Maximum Extended
Bilstein Shocks:
FRONT: RRD04056-B51
REAR: RRD04059-B51
requires 3" bump stops both front and rear
RRD Spec'd 2.25" Shocks: IN-HOUSE Designed and built - 2.25" Fluted aluminum construction, hard coat military grade black anodizing, 7/8" shaft, IFP (Internal floating piston), better bushings to achieve better misalignment, fully serviceable and rebuildable
RRD Spec Front Shock
Part Number RRD02287
RRD Spec Rear Shock
Part Number RRD02397
FULL PACKAGE = RRD02401
requires 3" bump stops both front and rear
Remote Reservoir 2.625" Coilover Shocks: Remote reservoir standard, IFP construction, MASSIVE 2.625" shock bodies, fluted aluminum bodies, 1" shaft, 1.25" mounting width, hard coat military grade black anodizing, fully serviceable and rebuildable.
RRD Spec Front Remote Reservoir Coilover
Part Number RRD07868RR
RRD Spec Remote Reservoir (NON-Coilover) Rear Shock
Part Number RRD07870RR
Wheel Fitment
Sport and Overland Wheel Fitment Recommendations
37”/38” Tall Tires - Recommend 3.5” of Back Spacing
Rubicon Fitment Recommendations
37” Tall Tires – Recommend 4.5” of Back Spacing
40” Tall Tires – Recommend 3.5” of Back Spacing
Tire Fitment
Sport and Overland with Full OEM Fenders
37” Tall Tires (3” Bump Stop Height Recommended)
Sport and Overland with Trimmed or High Lined OEM Fenders
38” Tall Tires (3” Bump Stop Height Recommended)
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 style" or heavily up-fitted build in the back, we recommend upsizing 1” in coil lift height for the rear.
We recommend a new front driveshaft if you plan to off-road routinely.(Adam's Drivesahft,Tom Woods,J.E. Reel)
Requires removal of the OEM shock mount off the frame (*If coilover system is purchased)
Requires removal of the OEM shock and spring mount off the axle (*If coilover system is purchased)
Requires welding of the new coil over mount on the axle only (*If coilover system is purchased)
Specs
Drive Type: 4WD
Compatible Engine Options: 3.6L Pentastar V6
Fuel Type: Gas
Application: 4 Door Jeep Gladiator (JT) Rubicon Trim Level









