2007-2021 Tundra 8" Big Lift Kit w/ Falcon 2.1 Shocks (44-58771)

ReadyLIFT's 8" Big Lift Kit for the 2007-2021 Toyota Tundra (2WD and 4WD) now ships with a pair of vehicle-specific Falcon 2.1 Monotube rear shocks, tuned for daily driving, towing and off-road use. Boxed steel dropped crossmembers, top mount strut extensions and ductile iron knuckles do the lifting up front while keeping the factory struts, the factory turning radius and the stock front track width, and the differential drop keeps CV axle and driveline angles in check on 4WD trucks. It clears tires up to 37x12.50.

Part Number: 44-58771 (supersedes 44-58770 and 44-5877)

• 8" front lift and 6" rear lift
• Two vehicle-specific Falcon 2.1 Monotube rear shocks with 2.3" aluminum bodies and 3/4" induction-hardened, chrome-plated shafts
• Laser-cut, CNC-bent, welded and boxed steel dropped crossmembers
• Ductile iron steering knuckles retain the factory tie rods (minor trimming required)
• Retains the factory front struts and factory turning radius without increasing front track width
• Differential drop system maintains CV axle and driveline angles on 4WD models
• Sway bar drop spacers keep the front sway bar in its factory position
• OEM-style cast iron rear lift blocks with new U-bolts, plus bump stop extensions and a skid plate

Tire Fitment:

• 37" maximum tire diameter
• 37x12.50 with no rub on a 9" wide wheel with +25 offset (6" backspacing)
• Fitment is based on Wheel Pros wheels and Nitto tires. Test fit every wheel and tire combination before installing.

• (2) Ductile iron knuckles engineered for use with the factory tie rods
• (2) Top mount strut extensions
• (2) Upper spring compression spacers
• (2) Laser-cut and boxed steel dropped crossmembers
• (2) Sway bar drop spacers
• (4) Bump stop extensions
• OEM-style cast iron rear lift blocks with new U-bolts
• Differential drop mount system
• (1) Skid plate
• (2) Falcon 2.1 Monotube rear shocks

• Not for 2015-2021 Tundra TRD Pro models with the factory Bilstein coilovers.
• Not compatible with the factory TRD rear sway bar option.
• Works with factory 20" wheels only. Not compatible with factory 18" wheels or any 17" wheels. Verify aftermarket wheel fitment before installing.
• Minor trimming is required to retain the factory tie rods.
• Estimated installation time is about 12 hours, excluding alignment and wheel and tire assembly. Professional installation is recommended.
• An alignment is required after installation. Headlamp aim and any ADAS cameras or sensors should also be checked and adjusted.

• ReadyLIFT Suspension Inc. and/or Dirty Diesel Customs are NOT responsible for any damage or failure resulting from improper installation.
• Click here to view installation instructions

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