PRO-X No Limits is the Rubicon version of the triangulated-rear mid-arm kit. Eight X-Factor-family arms, bolt-in triangulated rear uppers and billet "No Limits" front sway bar links that keep the Rubicon's electronic disconnect working. It is a 4.5 inch lift for Rubicon owners who want the rear track bar gone and the highway ride smoothed out.
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 spring pads
- 2 adjustable rear sway bar links
- 1 rear bolt-on Pro-X cradle (welding optional)
- 2 rear triangulated upper arms
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
- Triangulated 4-link rear keeps the axle perfectly centered, allows removal of the rear track bar and eliminates the cross talk between front and rear track bars
- "No Limits" front sway bar links built for the Rubicon's factory electronic sway bar disconnect
- X-Factor arms with 95 degrees of total misalignment, Adventure Series joints at the frame and Pro Krawler joints at the axle
- Adjustable arms to tune caster and pinion angle
- Triple-rate front and quad-rate rear coils
- Optional Pro-X cradle fit for Dynatrac XD60 and Ultimate Dana 60 rear axles (see fitment notes)
Pick your package
- Base System (No Shocks): everything except shocks. Handy if you already own a shock package you like. Bump stops are included with the shock options only and can be bought on their own as RK07464.
- Bilstein 5100 Shocks: Bilstein 5100 shocks, maintenance free and matched by Rock Krawler to its multi-rate springs. Bump stops are in the box.
- Stage 1 (RRD 2.25 IFP Shocks): RRD 2.25 inch IFP shocks from Rock Krawler, built in house with a fluted hard anodized aluminum body that cools like a 2.5 inch shock, a 3/4 inch 17-4 PH stainless hard chrome shaft, billet valve components and dual DU bearings. Serviceable, rebuildable, revalveable. Bump stops included.
- Comp System Stage 1: a front coilover and rear coil spring combination. You get 2.625 inch RRD remote reservoir coilovers (13 inches of travel, 14.44 inches of front axle travel) and matching 2.625 inch RRD remote reservoir rear shocks (12 inches of travel, 15 inches of rear axle travel), along with quad-rate rear coils and spring correction seats. Rock Krawler positions it for trucks that still tow small trailers or carry small loads.
- Comp System Stage 2 (Fast CD): Comp System hardware with Fast CD (compression damping) adjusters up front and in the rear, good for up to 30% more compression damping with infinite settings.
- Trail Runner Stage 1: four coilovers, 2.625 inch RRD remote reservoir units. It gives the Gladiator the most off-road ability Rock Krawler offers in this system and is tuned for the street, though Rock Krawler cautions against towing or loading the bed heavily with rear coilovers.
- Trail Runner Stage 2 (Fast CD): Trail Runner plus Fast CD adjusters on the coilovers, so you can tune compression damping.
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)
- 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.
