{"product_id":"rock-krawler-3-5-inch-t-rex-hybrid-system-2018-jeep-wrangler-jlu-4-door","title":"Rock Krawler 3.5 Inch T-Rex Hybrid System - 2018+ Jeep Wrangler JLU 4-Door","description":"\u003cp\u003eJeep packed the 4xe's cooling and high-voltage lines front to back right where long arm mounts would go, so a full long arm front end is a bad idea on this platform. Rock Krawler's T-Rex hybrid keeps the front a high-clearance mid arm and pairs it with its ultra-high-clearance 3-link rear conversion. You get the rear suspension that matters most off-road, X2 geometry, adjustable anti-squat and Adventure Series joints in every control arm.\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(4) Spring correction seats\u003c\/li\u003e\n\u003cli\u003e(1) Front adjustable anti-wobble track bar\u003c\/li\u003e\n\u003cli\u003e(1) Front sway bar disconnect kit\u003c\/li\u003e\n\u003cli\u003e(2) Front high-clearance adjustable lower control arms\u003c\/li\u003e\n\u003cli\u003e(2) Front adjustable upper control arms\u003c\/li\u003e\n\u003cli\u003e(2) High-clearance lower long arms\u003c\/li\u003e\n\u003cli\u003e(2) Rear extended sway bar links\u003c\/li\u003e\n\u003cli\u003e(1) Rear upper control arm\u003c\/li\u003e\n\u003cli\u003e(2) Rear lower control arms\u003c\/li\u003e\n\u003cli\u003e(1) Rear long arm mount kit\u003c\/li\u003e\n\u003cli\u003e(1) Rear upper frame mount\u003c\/li\u003e\n\u003cli\u003e(1) Rear track bar mount\u003c\/li\u003e\n\u003cli\u003e(1) Rear adjustable track bar\u003c\/li\u003e\n\u003cli\u003e(1) Rear axle truss\u003c\/li\u003e\n\u003cli\u003e(1) Rear brake line mount kit\u003c\/li\u003e\n\u003cli\u003e(2) Rear shock mounts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eShocks depend on the package you pick below. Bump stops come with every shock option; if you go with no shocks they can be ordered separately (Rock Krawler part RK07124).\u003c\/p\u003e\u003ch3\u003eWhy this system\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull high-clearance 4-link mid arm front suspension paired with a 3-link long arm rear.\u003c\/li\u003e\n\u003cli\u003eThe 3-link rear with a track bar removes the natural bind of the factory parallel 4-link rear, so the axle moves without jacking.\u003c\/li\u003e\n\u003cli\u003eX2 rear geometry gains 4.5 inches of clearance under the rear axle without giving up rear shock travel, raises the rear roll center and adds adjustable anti-squat.\u003c\/li\u003e\n\u003cli\u003eEvery control arm uses Adventure Series joints, so there is nothing to grease.\u003c\/li\u003e\n\u003cli\u003eTriple-rate coil springs with correction seats for a comfortable ride on the street.\u003c\/li\u003e\n\u003cli\u003eLifetime warranty coverage.\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 kit as listed above with no shocks, for the builder who already has shocks picked out. Bump stops come with every shock option; with this one they're ordered separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBilstein 5100 Shocks.\u003c\/strong\u003e The kit plus Bilstein 5100 shocks. Rock Krawler calls them maintenance free and a great pairing with its multi-rate coil springs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 (RRD 2.25 inch IFP shocks).\u003c\/strong\u003e Rock Krawler's in-house shock: a 2.25 inch hard anodized fluted aluminum body with the cooling surface of a 2.5 inch shock, a 3\/4 inch hard chrome stainless steel shaft, billet aluminum valving and dual DU shaft bearings. Serviceable, rebuildable and revalveable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoilover Comp System, Stage 1.\u003c\/strong\u003e Coilovers up front, coil springs and a shock in the rear: 2.625 inch RRD racing coilovers with remote reservoirs up front (12 inches of travel, about 13.3 inches of front axle travel) and matching 2.625 inch RRD racing shocks in the rear (11.5 inches of travel, about 12.8 inches of rear axle travel). Rock Krawler pitches it at owners who want coilover adjustability but still carry small loads or tow small trailers. Includes (2) triple-rate coil springs and (2) correction seats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoilover Comp System, Stage 2 (Fast CD).\u003c\/strong\u003e The same Comp System layout and travel as Stage 1, with Fast CD (compression damping) adjusters on the coilovers and the rear shocks for more tuning range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoilover Trail Runner, Stage 1.\u003c\/strong\u003e Coilovers at all four corners: 2.625 inch RRD racing coilovers with remote reservoirs front and rear (12 inches of front travel, 11 inches in the rear). Rock Krawler notes rear coilovers don't take changing loads as well, so heavy towing or a loaded bed isn't ideal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoilover Trail Runner, Stage 2 (Fast CD).\u003c\/strong\u003e The Trail Runner layout with Fast CD (compression damping) adjusters on the coilovers for even more tuneability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment and what else you'll need\u003c\/h3\u003e\u003cp\u003eFits the 2018 and newer Jeep Wrangler JLU (4-door): 4xe models.\u003c\/p\u003e\u003cp\u003eRock Krawler bases all lift heights on Rubicon models in a standard build (front bumper and winch, rear bumper and full-size spare). If you delete the spare, drop 1 inch of rear coil lift height; for an overland or heavily loaded rear build, go up 1 inch.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSport and Sahara: for 37 and 38 inch tall tires, Rock Krawler recommends 3.5 inches of backspacing. With full OEM fenders that means 37 inch tires; with trimmed or high-lined fenders, 38 inch tires (3 inch bump stop height recommended).\u003c\/li\u003e\n\u003cli\u003eRubicon: 37 inch tall tires want 4.5 inches of backspacing and 40 inch tall tires want 3.5 inches. With full OEM fenders, 37 or 38 inch tires fit; with trimmed or high-lined fenders, 40 inch tires fit (3 inch bump stop height recommended).\u003c\/li\u003e\n\u003cli\u003eRequires welding of the rear long arm mounts.\u003c\/li\u003e\n\u003cli\u003eRequires removing the OEM frame side upper and lower rear control arm mounts and the OEM axle side rear lower control arm and track bar mounts.\u003c\/li\u003e\n\u003cli\u003eRequires modifying the OEM rear shock mounts and welding on the raised rear upper shock mounts.\u003c\/li\u003e\n\u003cli\u003eRock Krawler recommends a new front C.V. driveshaft for any front shock with a max extended length over 29 inches.\u003c\/li\u003e\n\u003cli\u003eLimiting straps are recommended once the vehicle is set up, to avoid over-extending suspension components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRock Krawler lists lifetime warranty coverage on this system. Posted lead times from Rock Krawler, in business days from order: mid arm kits 1 to 2 weeks, long arm kits 3 to 4 weeks, 2.25 inch shocks 1 to 2 weeks and 2.625 inch shocks or coilovers 3 to 4 weeks.\u003c\/p\u003e","brand":"Rock Krawler","offers":[{"title":"Base System (No Shocks)","offer_id":45517358989378,"sku":"JL35TX2-4XE","price":4179.99,"currency_code":"USD","in_stock":true},{"title":"Bilstein 5100 Shocks","offer_id":45517359022146,"sku":"JL35TX2-4XEB51","price":4821.99,"currency_code":"USD","in_stock":true},{"title":"Stage 1 (RRD 2.25 IFP Shocks)","offer_id":45517359054914,"sku":"JL35TX2-4XES1","price":5433.99,"currency_code":"USD","in_stock":true},{"title":"Coilover Comp System - Stage 1","offer_id":45517359087682,"sku":"JL35TX2-4XECS","price":8199.99,"currency_code":"USD","in_stock":true},{"title":"Coilover Comp System - Stage 2 (Fast CD)","offer_id":45517359120450,"sku":"JL35TX2-4XECS2","price":9059.99,"currency_code":"USD","in_stock":true},{"title":"Coilover Trail Runner - Stage 1","offer_id":45517359153218,"sku":"JL35TX2-4XETR","price":9054.99,"currency_code":"USD","in_stock":true},{"title":"Coilover Trail Runner - Stage 2 (Fast CD)","offer_id":45517359185986,"sku":"JL35TX2-4XETR2","price":9819.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1476\/5984\/files\/JL35TX2-4XEs1.THUMB__01210.1749848245.jpg?v=1791653104","url":"https:\/\/www.skinnypedalracing.com\/products\/rock-krawler-3-5-inch-t-rex-hybrid-system-2018-jeep-wrangler-jlu-4-door","provider":"Skinny Pedal Racing","version":"1.0","type":"link"}