{"product_id":"rock-krawler-2-5-inch-x-factor-system-jeep-wrangler-jlu-diesel","title":"Rock Krawler 2.5 Inch X Factor System - Jeep Wrangler JLU Diesel","description":"\u003cp\u003eX Factor is the step into high-clearance adjustable arms: adjustable uppers and lowers, front and rear, on this 2.5 inch kit for the 4-door Wrangler JLU (diesel). You get caster and pinion adjustment at both axles, and Rock Krawler rates the arm and joint combination at 95 degrees of total misalignment.\u003c\/p\u003e\u003ch3\u003eWhat's in the kit\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e(4) triple-rate coil springs\u003c\/li\u003e\n\u003cli\u003e(2) front high-clearance adjustable upper control arms and (2) front high-clearance adjustable lower control arms\u003c\/li\u003e\n\u003cli\u003e(2) front spring pads\u003c\/li\u003e\n\u003cli\u003e(1) adjustable front track bar\u003c\/li\u003e\n\u003cli\u003e(2) Gen-II front sway bar links\u003c\/li\u003e\n\u003cli\u003e(2) rear high-clearance adjustable upper control arms and (2) rear high-clearance adjustable lower control arms\u003c\/li\u003e\n\u003cli\u003e(2) rear spring pads\u003c\/li\u003e\n\u003cli\u003e(2) adjustable rear sway bar links\u003c\/li\u003e\n\u003cli\u003e(1) bolt-on rear track bar relocation bracket\u003c\/li\u003e\n\u003cli\u003e(1) adjustable rear track bar (supplied depending on the shock package)\u003c\/li\u003e\n\u003cli\u003eBump stops (included with every shock option; sold separately if you buy the kit with no shocks)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy this system\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable arms, 95 degrees of misalignment:\u003c\/strong\u003e The X Factor adjustable upper and lower arms are rated for a total of 95 degrees of misalignment when paired with Pro-X Krawler joints at the axle and Adventure Series joints at the frame, which cuts the bind you get from the factory JL arms. The adjustability lets you tune caster and pinion angle front and rear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance-free joints:\u003c\/strong\u003e Adventure Series joints at the frame and Pro-X Krawler joints at the axle, so no grease gun on the trail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple-rate coils:\u003c\/strong\u003e Four coils tuned for the application. Rock Krawler says they ride better on the street than the factory linear-rate springs, and they carry enough free length to stay seated when the axle droops, as long as you run a proper length shock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring correction pads:\u003c\/strong\u003e These take the coil bow out of the factory setup and help with vehicle lean.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack bar geometry:\u003c\/strong\u003e The front track bar and the rear track bar correction center both axles, and the rear roll center improves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevel stance:\u003c\/strong\u003e Rock Krawler's stated goal is a Jeep that sits level on all four corners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade path:\u003c\/strong\u003e These kits are upgradable to Rock Krawler's long-arm system later, so you are not boxed in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Rock Krawler lists lifetime warranty coverage on the kit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePick your package\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase System (No Shocks):\u003c\/strong\u003e The complete kit with no shocks. Bump stops are not included on this option (Rock Krawler sells them separately). Pick it if you already have shocks picked out. Whatever you run, it needs to be a proper length so the coil stays seated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBilstein 5100 Shocks:\u003c\/strong\u003e The kit plus a set of maintenance-free Bilstein 5100 shocks, which Rock Krawler describes as a good pairing with its multi-rate coils. Bump stops are included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 - RRD 2.25 IFP Shocks:\u003c\/strong\u003e The kit plus Rock Krawler's in-house RRD 2.25 inch IFP shocks. The body is hard-anodized aluminum with the cooling surface of a 2.5 inch shock, the shaft is 3\/4 inch 17-4 PH stainless, and the valving is billet aluminum with dual DU shaft bearings. They are serviceable, rebuildable and revalvable. Bump stops are included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment and what else you will need\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle:\u003c\/strong\u003e 2018 to present Jeep Wrangler JLU 4-door, 4WD. The listing is for diesel engines only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTires and wheels:\u003c\/strong\u003e Sport and Sahara, 37\/38 inch tires with 3.5 inch backspacing (37 inch on full OEM fenders, 38 inch on trimmed or high-lined fenders). Rubicon, 37 inch tires with 4.5 inch backspacing or 40 inch tires with 3.5 inch (37\/38 inch on full OEM fenders, 40 inch on trimmed or high-lined fenders). A 3 inch bump stop height is recommended for all of them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLift height basis:\u003c\/strong\u003e Rock Krawler measures lift on a Rubicon with a front bumper and winch, a rear bumper and a full-size spare. If you delete the spare, drop the rear coil lift height by 1 inch. If the rear is heavily built up (overland gear), raise it by 1 inch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriveshaft:\u003c\/strong\u003e Rock Krawler recommends a new front driveshaft if you off-road regularly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelding:\u003c\/strong\u003e Rock Krawler recommends welding the rear cradle for 37 inch tires and larger.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rock Krawler","offers":[{"title":"Base System (No Shocks)","offer_id":45517346144322,"sku":"JL25XF-4D","price":3156.99,"currency_code":"USD","in_stock":true},{"title":"Bilstein 5100 Shocks","offer_id":45517346177090,"sku":"JL25XF-4DB51","price":3798.99,"currency_code":"USD","in_stock":true},{"title":"Stage 1 - RRD 2.25 IFP Shocks","offer_id":45517346209858,"sku":"JL25XF-4DS1","price":4410.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1476\/5984\/files\/JL25XF-DS1.THUMB__96587.1749582246.webp?v=1791652969","url":"https:\/\/www.skinnypedalracing.com\/products\/rock-krawler-2-5-inch-x-factor-system-jeep-wrangler-jlu-diesel","provider":"Skinny Pedal Racing","version":"1.0","type":"link"}