Rock Krawler 4.5 Inch Adventure X Mid Arm System - Gladiator JT
Rock Krawler 4.5 Inch Adventure X Mid Arm System - Gladiator JT - Comp System and Trail Runner coilover packages
Rock Krawler 4.5 Inch Adventure X Mid Arm System - Gladiator JT - Diesel kit
Rock Krawler 4.5 Inch Adventure X Mid Arm System - Gladiator JT - Diesel coilover packages

Rock Krawler 4.5 Inch Adventure X Mid Arm System - Gladiator JT

JT45AXM

Regular price$3,072.99
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Shipping calculated at checkout.

Package
Configuration

The Adventure X mid-arm system gives a Sport or Overland Gladiator 4.5 inches of lift with eight adjustable control arms, every one of them running Rock Krawler's service-free Adventure Series joints. It bolts in, it is tuned for the street as much as the trail, and the adjustable arms let you dial in caster and pinion angle front and rear instead of living with whatever the factory geometry gives you. If you want more later, the kit is upgradable to a Rock Krawler long-arm system.

What's in the kit

  • 4 coil springs (triple-rate front, quad-rate rear)
  • 2 front high clearance adjustable lower control arms
  • 2 front adjustable upper control arms
  • 2 front spring pads
  • 1 adjustable front track bar
  • 2 Gen-II quick-disconnect front sway bar links
  • 2 rear high clearance adjustable 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

  • Eight adjustable control arms with maintenance-free Adventure Series joints, rated by Rock Krawler at 70 degrees of total misalignment, so the factory-style bind is greatly reduced
  • Adjustable arms let you set caster and pinion angle at both axles
  • Triple-rate front coils and quad-rate rear coils, which Rock Krawler says ride better on the road than the factory springs
  • Coil correction pads that reduce the spring bow built into the stock setup
  • Front and rear track bar geometry corrections to center the axles
  • Gen-II quick-disconnect front sway bar links so you can free up the axle when the trail gets technical

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)
  • 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.

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