X-Factor is Rock Krawler's articulation play in a mid-arm package. Adjustable upper and lower arms with Pro Krawler joints at the axle and Adventure Series joints at the frame add up to 95 degrees of total misalignment, which is a lot of freedom for a bolt-in 4.5 inch kit. It is built for Sport and Overland Gladiators and it brings a complete bolt-in system, not just arms.
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 Gen-II 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
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
- 95 degrees of total misalignment from the adjustable X-Factor arms paired with Pro Krawler and Adventure Series joints
- Maintenance-free Adventure Series joints at the frame, Pro Krawler joints at the axle
- Caster and pinion angle adjust front and rear
- Triple-rate front and quad-rate rear coils, with correction pads for the factory spring bow
- Front and rear track bar geometry corrections for centered axles
- Gen-II sway bar links, and the kit is upgradable to a Rock Krawler long-arm system
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.
Pick Gas for the 3.6L Pentastar V6 or Diesel for the 3.0L Eco-Diesel. Rock Krawler lists the diesel as its own diesel-specific version of this kit, so choose the one that matches your engine.
Fitment and what else you'll need
- Fits the 2020+ Jeep Gladiator JT, 4 door, 4WD, Sport and Overland trim levels. Engine: 3.6L Pentastar V6 (gas) and 3.0L Eco-Diesel (diesel option)
- Rock Krawler wheel guidance: Sport and Overland, 3.5 inches of backspacing with 37/38 inch tires; Mojave, 4.5 inches with 37 inch tires or 3.5 inches with 40 inch tires
- Tire guidance (3 inch bump stop height recommended): Sport and Overland, 37 inch tall with full OEM fenders or 38 inch with trimmed or high-lined fenders; Mojave, 37/38 inch tall with full fenders or 40 inch 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
- 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.
