{"product_id":"timbren-ses-ihrdur4-rear-suspension-enhancement-system-15000-lb-overload-spring","title":"Timbren SES IHRDUR4 Rear Suspension Enhancement System 15000 lb Overload Spring","description":"\u003cp\u003eThis SES Suspension Upgrade fits the rear Lo-pro suspension of the International Durastar heavy-duty conventional with leaf springs. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit. We've engineered our hollow rubber springs to deliver a progressive spring rate. In other words, the more weight that pushes down on the rubber springs the harder they work to prevent rear end sag, and help stabilize the load.\u003c\/p\u003e\u003cp\u003eTimbren SES Suspension Enhancement System IHRDUR4 fits 2001-2018 International Durastar 4000. For Heavy Duty Rear Lo-pro applications.\u003c\/p\u003e\u003cp\u003eThis kit is rated at 15,000 lbs capacity. Even though you're increasing the spring rate by adding this upgrade, this does not increase the GVWR (Gross Vehicle Weight Rating). Please make sure that the load does not exceed the GVWR set by the manufacturer. \u003c\/p\u003e","brand":"Timbren","offers":[{"title":"Default Title","offer_id":43481252954344,"sku":"IHRDUR4","price":667.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/7501\/5144\/products\/IHRDUR4.jpg?v=1658444484","url":"https:\/\/www.shockwarehouse.com\/products\/timbren-ses-ihrdur4-rear-suspension-enhancement-system-15000-lb-overload-spring","provider":"ShockWarehouse","version":"1.0","type":"link"}