MaxTrac 903360 4" Rear Lift Box Kit for 2020-2026 Ford F-250 & F-350 4WD

Increase the rear ride height of your Super Duty with the MaxTrac 903360 Rear Lift Box Kit. Designed specifically for 2020-2026 Ford F-250 and F-350 4WD trucks, this heavy-duty kit includes 6-inch steel lift blocks and extended U-bolts to provide a true 4-inch rear lift while maintaining proper axle alignment and dependable load-carrying performance.

Constructed from high-strength steel and protected by MaxTrac's durable grey powder-coated finish, the 903360 is built to handle towing, hauling, and off-road adventures while giving your truck the aggressive stance to match.

Key Features

True 4" Rear Lift

Delivers approximately 4 inches of rear lift on 2020-2026 Ford Super Duty models.

Heavy-Duty 6" Lift Blocks

Includes rugged 6-inch steel lift blocks engineered for strength and long-lasting durability.

Extended U-Bolts Included

Heavy-duty U-bolts provide a secure installation and proper axle clamping force.

Grey Powder Coat Finish

Corrosion-resistant powder coating protects against rust, road salt, and harsh weather.

Direct Bolt-On Installation

Designed to install using factory mounting locations with no cutting or welding required.

Built for Heavy-Duty Applications

Perfect for towing, hauling, larger tires, and lifted Super Duty builds.

What's Included

• (2) 6" Rear Lift Blocks
• (2) Heavy-Duty U-Bolts
• Installation Hardware

Vehicle Fitment

Fits

• 2020-2026 Ford F-250 Super Duty 4WD
• 2020-2026 Ford F-350 Super Duty 4WD

Does Not Fit

• Ford F-250/F-350 Tremor models

Important Notes

• Produces approximately 4 inches of rear lift on 2020-2026 models.
• 2020 and newer F-350 dually models require removal of the upper overload spring and spacer block during installation.
• Professional installation is recommended.

Wheel Recommendations

• Maximum recommended wheel width: 9 inches.
• Minimum recommended backspacing: 4.5 inches.
• Wheels outside these specifications may void the manufacturer warranty.

Why Choose the MaxTrac 903360?

The MaxTrac 903360 provides a dependable and heavy-duty solution for increasing rear ride height on late-model Super Duty trucks. Featuring durable 6-inch lift blocks and premium installation hardware, this kit delivers reliable performance for work trucks, tow rigs, and off-road builds while maintaining proper suspension geometry.

Perfect For

• Rear suspension lifts
• Towing and hauling
• Larger tire installations
• Work trucks
• Daily driving
• Off-road builds

Product Specifications

Part Number: 903360
UPC: 706199412807
Kit Type: Lift / Level
Rear Lift: 4"
Lift Block Size: 6"
Material: Steel
Color: Grey
Finish: Grey Powder Coat
Engine Compatibility: Gas, Diesel
Sold As: Combo Kit
Weight: 30 lbs
Dimensions: 18" × 10" × 7"
Country of Origin: China