Dirt King +3" Long Travel Kit with Bushing Upper Arms for 2007–2021 Toyota Tundra (2WD/4WD) – DK-815908-B

+3" per side. 14.5" of front wheel travel. This is where your 2007–2021 Toyota Tundra stops pretending and starts playing in real long travel territory. Built for drivers who want race-inspired width, real articulation, and suspension that doesn’t flinch when the terrain gets violent.

This system is engineered to improve off-road handling without wrecking daily drivability, using proven geometry and heavy-duty components designed for real use.

Performance Specifications

• Wheel Travel: 14.5"
• Track Width: +3" per side
• Lift Range: 0-4"
• Maximum Tire Size: 37"
• Maximum Backspacing: 4.75"
• Minimum Wheel Diameter: 17"
• Coilover Size: 2.5" x 8"
• Bypass Shock Size: 2.5" x 8"
• Bump Stop Size: 2.0" x 2.0"

Engineering & Construction

•  Bolt on application, minimal modifications required
•  Utilizes Probearing bearings
•  4130 chromoly uniball cups
•  Polyurethane bushings for the UCA's
•  Delrin bushings for the LCA's
•  Zinc plated inner bushing sleeves
•  Grease fittings for easy servicing
•  3/16" and 1/8" boxed plate construction
•  Internally ribbed with extrusions for weight reduction
•  Bump stop plating
•  Limit strap tabbing
•  Bypass tabbing

Shock & Setup Guidance

• Required coilover size: 2.5" x 8" (to match proper long travel specs).
• Bypass compatibility: 2.5" x 8" (advanced damping control and tunability).
• OEM-style replacement coilovers may work with the correct spacers/spring setup, but can limit total wheel travel compared to properly spec-built long travel shocks.
• If you’re unsure what shocks or setup to run, iShock can help you spec the right configuration for your terrain and driving style.

4WD Requirements

• models along with the purchase of extended axle shafts.

Tire Fitment Notes

• When using 37” tires with this kit modifications to the wheel well will need to be made.
• The firewall pinch weld will need to be folded over and front cab mount needs to be shaved to avoid contact while turning.
• The upper wheel well will also need to be modified to avoid contact at full bump.

What’s Included

•  Boxed plate upper control arms
•  Boxed plate lower control arms
•  9" quad wrapped limit straps
•  Weld on adjustable limit strap mounts
•  17-4 stainless steel misalignment spacers
•  17-4 stainless steel tie rod extensions
•  DOT approved extended brake lines
•  Grade 8 mounting hardware
•  Zinc plated bushing washers

Why Buy From iShock?

iShock is a factory-authorized sales, service, and installation center with decades of suspension experience. If you want help pairing shocks, dialing spring rates, or planning a complete long travel build, we’ve got you covered.