{"product_id":"timbren-2004-toyota-sienna-rear-suspension-enhancement-system","title":"Timbren TORSEN04 Rear Suspension Enhancement System for 2004-2016 Toyota Sienna","description":"\u003cdiv vocab=\"https:\/\/schema.org\/\" id=\"tds-mobile-description\" typeof=\"Product\" style=\"display: none\"\u003e \u003cspan property=\"description\"\u003eTimbren Suspension Kits (SES Kits) are designed to enhance the suspension of your vehicle. Easiest to use: Rubber cushions absorb road shocks and automatically adjust to uneven loads or road conditions. Easiest to maintain: There are no airlines or fittings to allow leaks. Simply bolt the kit on and you are set for a lifetime of trouble free suspension.Easiest to install: There are no holes to drill, no airlines to route and SES Kits can be installed in a matter of minutes using basic hand tools. The softer ride quality of todays trucks and the mediocre suspensions found on most trailers can cause excessive trailer sway, instability and suspension settling.Timbrens high performance suspension packages will ensure added safety and peace of mind. Suspension Enhancement System; Weight Capacity 2400 lbs.; Rear;\u003c\/span\u003e\n\u003c\/div\u003e \u003cmeta name=\"x-apple-disable-message-reformatting\"\u003e\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\u003cp\u003e2004-2016 Toyota Sienna (All Models)\u003cbr\u003eFWD and AWD Applications\u003c\/p\u003e\u003ch4\u003eFitment Notes\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRear suspension application - mounts between frame and rear axle\u003c\/li\u003e\n\u003cli\u003eWorks with factory suspension - no modifications to OE components\u003c\/li\u003e\n\u003cli\u003eFWD models: straightforward bolt-on installation\u003c\/li\u003e\n\u003cli\u003eAWD models: installation requires more extensive access to mounting points\u003c\/li\u003e\n\u003cli\u003eProper installation should leave ¬Ω\" to 1¬Ω\" gap between spring and frame when unloaded\u003c\/li\u003e\n\u003cli\u003eDoes NOT increase GVWR - do not exceed manufacturer weight ratings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePatented Aeon hollow rubber spring technology\u003c\/li\u003e\n\u003cli\u003eProgressive spring rate - stiffens automatically as load increases\u003c\/li\u003e\n\u003cli\u003eEliminates rear-end sag under heavy loads\u003c\/li\u003e\n\u003cli\u003eReduces trailer sway and body roll\u003c\/li\u003e\n\u003cli\u003eImproves roll stability when hauling cargo or passengers\u003c\/li\u003e\n\u003cli\u003eCushions road shocks for smoother ride quality\u003c\/li\u003e\n\u003cli\u003eEach spring functions independently for uneven load compensation\u003c\/li\u003e\n\u003cli\u003eComfortable ride when unloaded - springs engage only under load\u003c\/li\u003e\n\u003cli\u003eBolt-on installation - no drilling required\u003c\/li\u003e\n\u003cli\u003eZero maintenance - no air lines, fittings, or compressors\u003c\/li\u003e\n\u003cli\u003eAll-weather performance - operates in extreme heat and cold\u003c\/li\u003e\n\u003cli\u003eLaser-cut steel brackets with powder coat finish\u003c\/li\u003e\n\u003cli\u003eISO9001 certified manufacturing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBrand: Timbren\u003c\/li\u003e\n\u003cli\u003ePart Number: TORSEN04\u003c\/li\u003e\n\u003cli\u003eUPC: 809933003481\u003c\/li\u003e\n\u003cli\u003eProduct Line: SES (Suspension Enhancement System)\u003c\/li\u003e\n\u003cli\u003ePosition: Rear\u003c\/li\u003e\n\u003cli\u003eSpring Type: Aeon Hollow Rubber\u003c\/li\u003e\n\u003cli\u003eRated Capacity: 2,400 lbs (per pair)\u003c\/li\u003e\n\u003cli\u003eKit Weight: 6.0 lbs\u003c\/li\u003e\n\u003cli\u003eBracket Finish: Black Powder Coat\u003c\/li\u003e\n\u003cli\u003eInstallation: Bolt-On (No Drilling)\u003c\/li\u003e\n\u003cli\u003eMaintenance: None Required\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Canada\u003c\/li\u003e\n\u003cli\u003eWarranty: Lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e(2) Timbren Aeon SES hollow rubber springs\u003c\/li\u003e\n\u003cli\u003e(2) Heavy-duty powder-coated steel mounting brackets\u003c\/li\u003e\n\u003cli\u003eAll necessary mounting hardware\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003eThe Timbren TORSEN04 Suspension Enhancement System eliminates rear-end sag and improves load handling for 2004-2016 Toyota Sienna minivans. Designed for families who frequently haul passengers, cargo, or tow trailers, this bolt-on system uses Timbren's patented Aeon hollow rubber springs to provide progressive load support that automatically adjusts to varying weights. As cargo load increases, the rubber springs compress and push back harder, keeping the vehicle level and eliminating the dangerous squat that compromises handling and headlight aim. The system mounts between the frame and rear axle, working in conjunction with the factory suspension rather than replacing it. Each spring operates independently to compensate for uneven weight distribution from side to side. Unlike air bag systems that require compressors, air lines, and regular pressure checks, the Timbren SES requires zero post-installation maintenance - simply bolt it on and enjoy improved stability for the life of the vehicle. When unloaded, the springs maintain a small gap from the frame so ride quality remains comfortable for everyday driving. The laser-cut steel brackets feature a durable powder coat finish for long-term corrosion resistance. Ideal for hauling heavy cargo, full passenger loads, or light trailer towing. Backed by Timbren's lifetime warranty and 100-day money-back guarantee.\u003c\/p\u003e","brand":"Timbren","offers":[{"title":"Default Title","offer_id":50508908429631,"sku":"TIMTORSEN04","price":269.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/57_19adcd19-1f91-45d5-8293-dc96e5b75ed5.jpg?v=1770848592","url":"https:\/\/wcaperformance.com\/products\/timbren-2004-toyota-sienna-rear-suspension-enhancement-system","provider":"WCA Performance","version":"1.0","type":"link"}