{"product_id":"icon-2007-2021-toyota-tundra-rear-leaf-spring-expansion-pack-kit","title":"ICON 2007-2021 Toyota Tundra Rear Leaf Spring Expansion Pack Kit","description":"\u003cp class=\"product-lead\"\u003eThe ICON 2007-2021 Toyota Tundra Rear Leaf Spring Expansion Pack Kit is a rear suspension upgrade for 2007–2021 Toyota Tundra trucks that delivers 1.5 inches of rear lift height while softening the spring rate, the opposite trade-off from a traditional add-a-leaf. The kit replaces all factory secondary leaves and retains the factory main and overload springs, and includes a U-bolt kit for installation.\u003c\/p\u003e\n\u003cp class=\"product-shipping-note\"\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e ICON parts ship direct from ICON Vehicle Dynamics, mostly by UPS Ground. Lead times vary by part and some items are built to order, so please allow extra time. We email tracking as soon as your order ships.\u003c\/p\u003e\n\n\u003ch2\u003eLift Without the Stiffness Penalty\u003c\/h2\u003e\n\u003cp\u003eTraditional add-a-leaf kits raise ride height by adding spring layers, which stiffens the overall spring rate and degrades ride quality. The ICON Rear Leaf Spring Expansion Pack takes a different approach: it removes and replaces the factory secondary leaves rather than stacking on top of them, allowing the spring rate to decrease even as ride height increases. For a Tundra used daily or on long overland runs, that means a more compliant ride over rough pavement and trail surfaces without giving up the 1.5-inch lift.\u003c\/p\u003e\n\n\u003ch2\u003eLoad and Towing Capacity Preserved\u003c\/h2\u003e\n\u003cp\u003eBecause the factory main leaf and overload springs are retained, the Tundra's load-carrying and towing capacities are maintained. Tundra owners who haul gear, tow trailers, or carry a bed-mounted camper can run this kit without compromising the truck's working capability. That is a meaningful distinction from lift solutions that sacrifice payload headroom for height.\u003c\/p\u003e\n\n\u003ch2\u003eIncreased Wheel Travel When Paired with ICON Shocks\u003c\/h2\u003e\n\u003cp\u003eThe Rear Leaf Spring Expansion Pack is designed to work in conjunction with ICON shock absorbers. When paired with compatible ICON rear shocks, the kit increases rear wheel travel beyond the factory range, giving the suspension more room to articulate over uneven terrain. The kit ships with a U-bolt kit to simplify the installation process.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1.5-inch rear lift:\u003c\/strong\u003e raises the rear ride height without an add-a-leaf approach\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSofter spring rate:\u003c\/strong\u003e replaces factory secondary leaves to improve ride compliance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory load and towing capacity maintained:\u003c\/strong\u003e retains the factory main and overload springs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncreased wheel travel:\u003c\/strong\u003e when used with ICON rear shock absorbers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eU-bolt kit included:\u003c\/strong\u003e hardware for installation is in the box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSKU\u003c\/td\u003e\n      \u003ctd\u003e51200\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVehicle Fitment\u003c\/td\u003e\n      \u003ctd\u003e2007–2021 Toyota Tundra\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLift Height\u003c\/td\u003e\n      \u003ctd\u003e1.5 inches (rear)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWhat Replaces\u003c\/td\u003e\n      \u003ctd\u003eFactory secondary leaf springs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWhat Is Retained\u003c\/td\u003e\n      \u003ctd\u003eFactory main leaf spring and overload springs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHardware Included\u003c\/td\u003e\n      \u003ctd\u003eU-bolt kit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eShipping Weight\u003c\/td\u003e\n      \u003ctd\u003e75 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eCalifornia Residents: This product contains chemicals known to the State of California to cause cancer, birth anomalies, or other reproductive harm.\u003c\/p\u003e\n\n\u003ch2\u003eWho This Is For and Isn't\u003c\/h2\u003e\n\u003cp class=\"product-fit-yes\"\u003eThis kit suits 2007–2021 Toyota Tundra owners who want 1.5 inches of rear lift with improved ride quality and no reduction in load or towing capacity. It is particularly well matched for those who also run or plan to run ICON rear shock absorbers to take full advantage of the increased wheel travel.\u003c\/p\u003e\n\u003cp class=\"product-fit-no\"\u003eThis kit is not compatible with the TRD rear sway bar kit. It does not fit any Tundra model year outside the 2007–2021 range. Tundra owners looking to maximize rear spring performance beyond what this kit provides should consider the ICON Multi-Rate Leaf Spring (part number 158509) instead.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3 class=\"product-faq-q\"\u003eDoes this kit work with the TRD rear sway bar kit?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eNo. The ICON 2007–2021 Toyota Tundra Rear Leaf Spring Expansion Pack Kit is not compatible with the TRD rear sway bar kit. Tundra owners running the TRD rear sway bar should confirm compatibility with an alternative suspension solution before purchasing.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-q\"\u003eDo I need ICON shocks to install this kit?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe Rear Leaf Spring Expansion Pack installs without requiring ICON shocks, but the increased wheel travel the kit is designed to provide is realized when paired with compatible ICON rear shock absorbers. Running the springs alone still delivers the 1.5-inch lift and improved spring rate.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWhat hardware is included in the box?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe ICON Rear Leaf Spring Expansion Pack Kit includes the replacement secondary leaf springs and a U-bolt kit. The U-bolt kit is included to cover the hardware needed for installation without requiring a separate hardware purchase.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWill this kit reduce my Tundra's towing or payload capacity?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eNo. The kit retains the factory main leaf spring and overload springs, which are the primary load-bearing elements of the rear suspension. Load-carrying and towing capacities are maintained, making this kit suitable for Tundra owners who regularly haul or tow.\u003c\/p\u003e","brand":"ICON Vehicle Dynamics","offers":[{"title":"Default Title","offer_id":50630931710022,"sku":"51200","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2203\/1686\/files\/696bdb5eb83ae0075a97fd28247b8812-sq.jpg?v=1791963551","url":"https:\/\/terrainvault.com\/products\/icon-2007-2021-toyota-tundra-rear-leaf-spring-expansion-pack-kit","provider":"TerrainVault","version":"1.0","type":"link"}