{"product_id":"rock-krawler-4-5-inch-x-factor-pro-mid-arm-lift-kit-jeep-wrangler-jl","title":"Rock Krawler 4.5 Inch X-Factor Pro Mid-Arm Lift Kit - Jeep Wrangler JL","description":"\u003cp\u003eX-Factor Pro is the aluminum version of the X-Factor mid-arm design for the Wrangler JL (2-door), aimed at Sport and Sahara owners. All eight control arms are made from solid 7075 aluminum, and all the standard X-Factor benefits come built in.\u003c\/p\u003e\u003cp\u003eThat means the 95 degrees of misalignment, maintenance-free Adventure Series joints at the frame and Pro Krawler joints at the axle, in an all-aluminum arm set. The kit is complete and bolts in.\u003c\/p\u003e\u003ch3\u003eWhat's in the kit\u003c\/h3\u003e\u003cp\u003eThe base kit, as Rock Krawler lists it:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e(2) front and (2) rear 7075 aluminum adjustable lower control arms\u003c\/li\u003e\n\u003cli\u003e(2) front and (2) rear 7075 aluminum adjustable upper control arms\u003c\/li\u003e\n\u003cli\u003e(4) triple-rate coil springs and (2) front, (2) rear spring pads\u003c\/li\u003e\n\u003cli\u003e(1) adjustable front track bar and (1) rear adjustable track bar\u003c\/li\u003e\n\u003cli\u003e(2) Gen-II sway bar links\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\u003eBump stops with every shock option (not included with the base system)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe coilover packages (Comp) swap in front shock towers and brackets, and keep two rear triple-rate coil springs with rear spring correction seats.\u003c\/p\u003e\u003ch3\u003eWhy this system\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid 7075 aluminum arms.\u003c\/strong\u003e Eight of them, adjustable, uppers and lowers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e95 degrees of misalignment.\u003c\/strong\u003e Pro Krawler joints at the axle and Adventure Series joints at the frame cut factory arm bind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning range.\u003c\/strong\u003e Adjustable arms let you set caster and pinion angle at both axles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple-rate coils.\u003c\/strong\u003e Rock Krawler says the on-road comfort beats the factory linear-rate springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle centering.\u003c\/strong\u003e Front and rear track bar geometry corrections plus a bolt-on rear relocation bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGen-II sway bar links.\u003c\/strong\u003e Included, with adjustable rear links.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePick your package\u003c\/h3\u003e\u003cp\u003eThe Package option sets the shocks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase System (No Shocks).\u003c\/strong\u003e Kit only, for buyers who already have shocks picked out. Bump stops ship with every shock option; with no shocks they are sold separately (Rock Krawler lists them as RK07124). Generic shock lengths for the gas kits: front 18.31 inches collapsed and 30.31 extended, rear 19 collapsed and 31 extended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBilstein 5100 Shocks.\u003c\/strong\u003e Maintenance-free shocks that Rock Krawler calls a great pairing with its multi-rate coil springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 Shocks (RRD 2.25 IFP).\u003c\/strong\u003e Rock Krawler's in-house shocks: a 2.25 inch hard anodized fluted aluminum body with the cooling surface area of a 2.5 inch shock, a 3\/4 inch hard chrome stainless shaft and dual DU shaft bearings. Serviceable, rebuildable and revalveable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComp Coilover Stage 1 and Stage 2.\u003c\/strong\u003e The Comp System runs 2 5\/8 inch RRD racing coilovers with remote reservoirs up front and matching 2 5\/8 inch RRD shocks with remote reservoirs in the rear, with coil springs still holding up the back, so it can still carry small loads or tow a small trailer. Stage 2 adds Fast CD (compression damping) adjusters. Rock Krawler lists 14.4 inches of front axle travel and 13.9 inches of rear axle travel.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment and what else you'll need\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits 2018 and newer Jeep Wrangler JL 2-door models, Sport and Sahara (non-Rubicon), gas.\u003c\/li\u003e\n\u003cli\u003eRock Krawler's tire guidance for Sport and Sahara models: 37 inch tires with full OEM fenders, or 38 inch tires with trimmed or high-lined fenders, at a 3 inch bump stop height with 3.5 inches of backspacing.\u003c\/li\u003e\n\u003cli\u003eLift heights are based on a standard Rubicon build (front bumper and winch, rear bumper and full-size spare). Rock Krawler suggests dropping 1 inch of rear coil lift if you delete the spare, and going up 1 inch if you load the back for an overland-style build.\u003c\/li\u003e\n\u003cli\u003eA new front driveshaft is recommended if you wheel the Jeep routinely, and Rock Krawler recommends welding the rear cradle with 37 inch tires or larger.\u003c\/li\u003e\n\u003cli\u003eThe coilover packages need fabrication: the listing calls for removing the factory shock mount on the frame and the shock and spring mount on the axle, and welding the new coilover mount to the axle.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRock Krawler lists lifetime warranty coverage on the system itself, and its RRD shocks carry a separate 6 month warranty against defects in materials and workmanship.\u003c\/p\u003e","brand":"Rock Krawler","offers":[{"title":"Base System (No Shocks)","offer_id":45517403029570,"sku":"JL45XFP-2","price":3537.99,"currency_code":"USD","in_stock":true},{"title":"Bilstein 5100 Shocks","offer_id":45517403062338,"sku":"JL45XFP-2B51","price":4063.99,"currency_code":"USD","in_stock":true},{"title":"Stage 1 Shocks (RRD 2.25 IFP)","offer_id":45517403095106,"sku":"JL45XFP-2S1","price":4791.99,"currency_code":"USD","in_stock":true},{"title":"Comp Coilover Stage 1","offer_id":45517403127874,"sku":"JL45XFP-2CS","price":7546.99,"currency_code":"USD","in_stock":true},{"title":"Comp Coilover Stage 2 (Fast CD)","offer_id":45517403160642,"sku":"JL45XFP-2CS2","price":8406.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1476\/5984\/files\/JL45XFP-S1.THUMB__37998.1748026196.webp?v=1791653388","url":"https:\/\/www.skinnypedalracing.com\/products\/rock-krawler-4-5-inch-x-factor-pro-mid-arm-lift-kit-jeep-wrangler-jl","provider":"Skinny Pedal Racing","version":"1.0","type":"link"}