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ICON Vehicle Dynamics · Rear Leaf Spring
ICON Vehicle Dynamics part 158509 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. Two 158509 springs are required per vehicle, and ICON 52050 rear U-bolt kit is required separately.
| Part number | Role / quantity for one vehicle |
|---|---|
| 158509 | RXT multi-rate leaf spring with add-in leaf — order quantity 2 |
| 52050 | 8-inch rear U-bolt kit for one axle — required, sold separately, quantity 1 |
A: No. ICON’s current exact-part listing states that 158509 is sold individually. Order quantity two for one Tundra.
A: ICON 52050 8-inch rear U-bolt kit is required and sold separately. One 52050 kit services the rear axle.
A: Part 158509 is specified for the rear of 2007–2021 Toyota Tundra models, subject to the sway-bar and equipment exclusions.
A: No. ICON specifically states that 158509 is not compatible with the Toyota TRD rear sway-bar kit.
A: 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.
A: ICON documents approximately 1.75 to 4 inches depending on the selected configuration and vehicle load. Actual height varies with equipment and weight.
A: They are not listed as the separate mounting hardware requirement, but ICON recommends RXT rear shocks for the intended travel and tuning results.
A: 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.
Manufacturer product record: 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.
Installation manual: ICON 158509 RXT leaf-spring instructions.
Select the add-in-leaf arrangement for the truck’s actual permanent load and suspension setup; do not choose a setting from desired height alone.
If you have any questions or need assistance, please reach out to us at 800.292.4173 or support@mytruckpoint.ca.
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We offer price Match plus 10% off the price different
Serving Canadian Since 2015