Rock Krawler 4.5 Inch Adventure X PRO No Limits Mid Arm System - Gladiator JT

Rubicon owners who want the triangulated rear get it here. Adventure X PRO No Limits pairs eight adjustable Adventure Series control arms with bolt-in triangulated rear uppers and the "No Limits" front sway bar links that work with the Rubicon's factory electronic disconnect. The result is a 4.5 inch bolt-in kit with a rear end that stays centered by geometry instead of a track bar, and a front end you can still unlock with one button.

What's in the kit

• 4 coil springs (triple-rate front, quad-rate rear)
• 2 front adjustable high clearance lower control arms
• 2 front adjustable upper control arms
• 2 front spring pads
• 1 adjustable front track bar
• 2 "No Limits" front sway bar links
• 2 rear adjustable high clearance lower control arms
• 2 rear adjustable upper control arms
• 2 rear spring pads
• 2 adjustable rear sway bar links
• 1 bolt-on rear track bar relocation bracket
• 1 rear bolt-on Pro-X cradle (welding optional)
• 2 rear triangulated upper arms
• 1 rear brake line kit

Shocks depend on the package you pick. Bump stops come with every shock option. Coilover packages add the shock towers and brackets they need.

Why this system

• "No Limits" front sway bar links with CNC-machined billet aluminum centers and Made in USA FK Bearing heims, designed for the Rubicon's electronic disconnect
• Triangulated rear 4-link keeps the rear axle centered, allows removal of the rear track bar and eliminates rear suspension bind
• Eight adjustable arms with service-free Adventure Series joints, 70 degrees of total misalignment
• Bolt-on Pro-X rear cradle, welding optional (Rock Krawler recommends welding the cradle for 37 inch tires and larger)
• Triple-rate front and quad-rate rear coils with spring correction seats
• Includes a rear brake line kit

Pick your package

• Base System (No Shocks): arms, coils and hardware with no shocks, for builds where the shocks are already sorted. Bump stops come with every shock package; if you skip shocks entirely, Rock Krawler sells the bump stops separately as RK07464.
• Bilstein 5100 Shocks: a maintenance-free shock package that Rock Krawler calls a great pairing with its multi-rate coil springs. Bump stops included.
• Stage 1 (RRD 2.25 IFP Shocks): Rock Krawler's RRD 2.25 inch IFP shocks, designed and built in house. Hard anodized fluted aluminum body with the cooling surface of a 2.5 inch shock, 3/4 inch 17-4 PH stainless hard chrome shaft, billet valve circuit, dual DU shaft bearings and double redundant sealing. Serviceable, rebuildable and revalveable. Bump stops included.
• Comp System Stage 1: coilovers up front, coil springs in the rear. 2.625 inch RRD racing coilovers with remote reservoirs up front (13 inches of travel, 14.44 inches of front axle travel per Rock Krawler) and matching 2.625 inch RRD remote reservoir shocks in the rear (12 inches of travel, 15 inches of rear axle travel). Rock Krawler pitches it at people who still carry small loads or tow a small trailer. Rear quad-rate coils and spring correction seats come with it.
• Comp System Stage 2 (Fast CD): the Comp System with Fast CD (compression damping) adjusters on the front coilovers and rear shocks. Fast CD lets you add up to 30% more compression damping with infinite settings.
• Trail Runner Stage 1: coilovers at all four corners, built on 2.625 inch RRD remote reservoir coilovers. Rock Krawler says it maximizes off-road ability and still comes well tuned for the street, but rear coilovers handle changes in load less well, so towing or hauling a lot of weight in the bed is not ideal.
• Trail Runner Stage 2 (Fast CD): Trail Runner with Fast CD adjusters on the coilovers for added tuneability.

Fitment and what else you'll need

• Fits the 2020+ Jeep Gladiator JT, 4 door, 4WD, Rubicon trim level. Engine: 3.6L Pentastar V6 (gas models)
• Rock Krawler wheel guidance: 4.5 inches of backspacing with 37 inch tall tires, 3.5 inches with 40 inch tall tires
• Tire guidance on a Rubicon (3 inch bump stop height recommended): 37/38 inch tall with full OEM fenders, 40 inch tall with trimmed or high-lined fenders
• Lift height is figured on a Rubicon with a standard build (front bumper and winch, rear bumper, full size spare). Delete the spare and Rock Krawler suggests dropping 1 inch in rear coil lift height; load up the rear overland-style and they suggest going up 1 inch
• Rock Krawler recommends a new front driveshaft if you plan to off-road routinely (they name Adam's Driveshaft, Tom Woods and J.E. Reel)
• Welding the rear cradle is recommended for 37 inch tires and larger
• Running a Dynatrac XD60 or Ultimate Dana 60 rear axle? Rock Krawler offers the optional Pro-X cradle: RK08078 for the Dynatrac XD60, RK08068 for the Ultimate Dana 60
• Coilover packages (Comp System and Trail Runner) require removal of the OEM frame shock mount and the OEM shock and spring mount on the axle, plus welding of the new coilover mount to the axle only

Rock Krawler's posted lead time when we listed this kit: 1-2 weeks for mid arm kits, counted in business days from order. Coilover packages are posted at 3-4 weeks.

Rock Krawler lists lifetime warranty coverage on its Gladiator JT systems. The RRD shocks carry their own 6-month warranty against defects in materials and workmanship.