{"product_id":"icon-158509-rxt-leaf-spring-tundra","title":"ICON Vehicle Dynamics 158509 07-21 TUNDRA MULTI RATE RXT LEAF PACK W\/ ADD IN LEAF","description":"\u003cdiv style=\"max-width:100%;box-sizing:border-box;color:#374151;font-size:15px;line-height:1.7;overflow-wrap:anywhere;\"\u003e\n\u003cp style=\"margin:0 0 8px;color:#b52828;font-size:12px;font-weight:700;letter-spacing:1.3px;text-transform:uppercase;\"\u003eICON Vehicle Dynamics · Rear Leaf Spring\u003c\/p\u003e\n\u003ch2 style=\"margin:0 0 14px;color:#1f2937;font-size:22px;line-height:1.35;font-weight:700;\"\u003eICON 158509 RXT Multi-Rate Leaf Spring for 2007–2021 Tundra\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 22px;\"\u003eICON Vehicle Dynamics part \u003cstrong\u003e158509\u003c\/strong\u003e is one individual RXT multi-rate rear leaf spring for 2007–2021 Toyota Tundra. It includes an add-in leaf so the spring can be configured in three rate\/height arrangements. \u003cstrong\u003eTwo 158509 springs are required per vehicle\u003c\/strong\u003e, and ICON \u003cstrong\u003e52050\u003c\/strong\u003e rear U-bolt kit is required separately.\u003c\/p\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:24px;max-width:100%;box-sizing:border-box;align-items:flex-start;\"\u003e\n\u003cdiv style=\"flex:2 1 400px;min-width:0;max-width:100%;box-sizing:border-box;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;color:#1f2937;font-size:18px;line-height:1.4;\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul style=\"margin:0 0 20px;padding-left:22px;\"\u003e\n\u003cli style=\"margin:0 0 7px;\"\u003e\n\u003cstrong\u003eThree user-configurable arrangements:\u003c\/strong\u003e use the pack as shipped, replace the third leaf with the add-in leaf, or add the extra leaf into the pack for progressively higher support.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 7px;\"\u003e\n\u003cstrong\u003eLoad-specific tuning:\u003c\/strong\u003e the add-in leaf changes the spring rate for trucks carrying accessories such as bed racks, spare tires or camping equipment.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 7px;\"\u003e\n\u003cstrong\u003eMilitary-wrap front eye:\u003c\/strong\u003e reinforces the spring-eye area for demanding use.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 7px;\"\u003e\n\u003cstrong\u003eGalvanized separators and tip inserts:\u003c\/strong\u003e reduce interleaf friction, noise and corrosion exposure.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 7px;\"\u003e\n\u003cstrong\u003eDirect replacement location:\u003c\/strong\u003e installs at the factory rear leaf-spring points when paired with the required U-bolts and proper hardware.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 7px;\"\u003e\n\u003cstrong\u003eRXT system integration:\u003c\/strong\u003e ICON recommends RXT rear shocks for best travel and tuning results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:0 0 10px;color:#1f2937;font-size:18px;line-height:1.4;\"\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:22px;\"\u003e\n\u003cli style=\"margin-bottom:7px;\"\u003e\n\u003cstrong\u003eVehicle:\u003c\/strong\u003e 2007–2021 Toyota Tundra rear suspension.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:7px;\"\u003e\n\u003cstrong\u003eRequired quantity:\u003c\/strong\u003e order two individual 158509 leaf springs for one truck.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:7px;\"\u003e\n\u003cstrong\u003eRequired separate part:\u003c\/strong\u003e ICON 52050 8-inch rear U-bolt kit, quantity one per axle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExclusion:\u003c\/strong\u003e not compatible with the Toyota TRD rear sway-bar kit. Verify other rear accessories, axle setup and shock travel before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:20px 0 10px;color:#1f2937;font-size:18px;line-height:1.4;\"\u003eWhat’s Included \u0026amp; What Is Separate\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:22px;\"\u003e\n\u003cli style=\"margin-bottom:7px;\"\u003eOne ICON 158509 RXT leaf-spring pack with its add-in leaf and spring bushings for that individual spring.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:7px;\"\u003e\n\u003cstrong\u003eNot a complete axle pair:\u003c\/strong\u003e two 158509 units are required for the truck.\u003c\/li\u003e\n\u003cli style=\"margin-bottom:7px;\"\u003eICON 52050 U-bolt kit is required and sold separately.\u003c\/li\u003e\n\u003cli\u003eRXT rear shocks, professional alignment\/inspection and any other replacement chassis hardware are separate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:20px 0 10px;color:#1f2937;font-size:18px;line-height:1.4;\"\u003eKit Part Numbers \u0026amp; Components\u003c\/h3\u003e\n\u003cdiv style=\"max-width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;background:#eef1f4;color:#1f2937;font-weight:700;\"\u003ePart number\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;background:#eef1f4;color:#1f2937;font-weight:700;\"\u003eRole \/ quantity for one vehicle\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003e158509\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eRXT multi-rate leaf spring with add-in leaf — order quantity 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003e52050\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003e8-inch rear U-bolt kit for one axle — required, sold separately, quantity 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003caside style=\"flex:1 1 300px;min-width:0;max-width:100%;box-sizing:border-box;background:#f7f8fa;border:1px solid #d9dee5;border-radius:8px;padding:16px;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;color:#1f2937;font-size:18px;line-height:1.4;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv style=\"max-width:100%;overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;min-width:420px;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;background:#eef1f4;color:#1f2937;font-weight:700;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;background:#eef1f4;color:#1f2937;font-weight:700;\"\u003eVerified detail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eManufacturer part\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003e158509\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eSale unit\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eOne individual rear leaf spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eVehicle quantity\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eTwo springs required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003ePosition\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eRear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eConfigurations\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eThree spring-rate \/ ride-height arrangements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eApprox. rear lift\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003e1.75–4 in, configuration and load dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eRequired separate kit\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eICON 52050 rear U-bolt kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eCompatibility warning\u003c\/td\u003e\n\u003ctd style=\"text-align:left;padding:9px 10px;border-bottom:1px solid #d9dee5;\"\u003eNot for TRD rear sway-bar kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"margin:20px 0 8px;color:#1f2937;font-size:18px;line-height:1.4;\"\u003eInstallation, Use \u0026amp; Care\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 10px;\"\u003eLeaf-spring replacement supports vehicle weight and changes ride height. Installation should be performed by a qualified technician with the truck securely supported, following ICON’s torque sequence and configuration diagrams. Re-torque and inspect after the manufacturer’s recommended break-in interval.\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eRead the \u003ca href=\"https:\/\/images.iconfigurators.app\/pdf\/Icon_Dynamics\/I158509_REVB.pdf\"\u003eICON 158509 installation instructions\u003c\/a\u003e before selecting a spring arrangement. Confirm rear shock travel, brake-line and driveline clearances through the full suspension cycle.\u003c\/p\u003e\n\u003c\/aside\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"margin:30px 0 14px;color:#1f2937;font-size:22px;line-height:1.35;font-weight:700;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is this listing a pair of leaf springs?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. ICON’s current exact-part listing states that 158509 is sold individually. Order quantity two for one Tundra.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What else is required for installation?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e ICON 52050 8-inch rear U-bolt kit is required and sold separately. One 52050 kit services the rear axle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Which Tundra years does it fit?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Part 158509 is specified for the rear of 2007–2021 Toyota Tundra models, subject to the sway-bar and equipment exclusions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does it fit a truck with the TRD rear sway bar?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. ICON specifically states that 158509 is not compatible with the Toyota TRD rear sway-bar kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How are the three settings created?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The pack can run as shipped, have its third leaf replaced with the included add-in leaf, or have that leaf added between the second and third leaves. Follow the ICON diagram rather than estimating leaf order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How much rear lift does it provide?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e ICON documents approximately 1.75 to 4 inches depending on the selected configuration and vehicle load. Actual height varies with equipment and weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Are ICON RXT shocks required?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e They are not listed as the separate mounting hardware requirement, but ICON recommends RXT rear shocks for the intended travel and tuning results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\n\u003ch3 style=\"margin:0;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-size:17px;font-weight:700;line-height:1.5;\"\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Can this be installed like a simple bolt-on accessory?\u003c\/h3\u003e\n\u003cp style=\"margin:0;padding:14px 16px;color:#374151;font-size:15px;line-height:1.7;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It uses factory spring locations, but this is suspension work that supports vehicle weight. Proper lifting equipment, torque procedures and post-install inspection are essential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails open style=\"margin-top:24px;border:1px solid #d9dee5;border-radius:8px;overflow:hidden;background:#fff;\"\u003e\u003csummary style=\"cursor:pointer;padding:14px 16px;background:#f1f3f5;color:#1f2937;font-weight:700;\"\u003eMore product details \u0026amp; helpful resources\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px;\"\u003e\n\u003cp style=\"margin:0 0 10px;\"\u003e\u003cstrong\u003eManufacturer product record:\u003c\/strong\u003e ICON’s exact 158509 listing confirms the individual sale unit, quantity two per vehicle, required 52050 U-bolt kit and TRD rear sway-bar exclusion.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 10px;\"\u003e\u003cstrong\u003eInstallation manual:\u003c\/strong\u003e \u003ca href=\"https:\/\/images.iconfigurators.app\/pdf\/Icon_Dynamics\/I158509_REVB.pdf\"\u003eICON 158509 RXT leaf-spring instructions\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eSelect the add-in-leaf arrangement for the truck’s actual permanent load and suspension setup; do not choose a setting from desired height alone.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"ICON Vehicle Dynamics","offers":[{"title":"Default Title","offer_id":47860521664797,"sku":"FRDK_158509","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/2771\/7661\/files\/158509_WEB_LARGE_3e82e597-39fc-4044-92a4-d9823f6abd03.jpg?v=1757561486","url":"https:\/\/www.mytruckpoint.com\/products\/icon-158509-rxt-leaf-spring-tundra","provider":"TruckPoint","version":"1.0","type":"link"}