Maxtrac 704140 4" Lift Spindles w/ Brake Lines for 2021-2025 Ford F-150 2WD

Vehicle Fitment

• 2021-2025 Ford F-150 (2WD Only, All Gas Engine Cabs)

Fitment Notes

• Fits 2WD models only
• Does NOT fit Tremor, Hybrid, BlueCruise, or CCD suspension models
• Requires minimum 17"x8" wheel with maximum 6.25" backspacing
• Clears up to 35" tires with proper wheel offset; clears 33"x11.50" on 8"-9" wide rim
• Factory shocks and coil springs can be retained - no shock or spring replacement required
• Always measure prior to installation for proper wheel and tire fitment
• MaxTrac does not recommend wheels wider than 9" or with less than 4.5" backspacing - doing so voids the manufacturer warranty
• Vehicle must be re-aligned after installation

Features

• One-piece ductile iron construction machined to precise OE specifications - significantly stronger than cast alternatives
• Delivers a true 4" front lift by replacing the factory steering knuckle - no drop brackets, spacers, or crossmember cuts needed
• E-coated black finish provides long-term corrosion and surface rust protection
• Includes DOT-approved extended front brake lines to safely accommodate the lifted ride height
• 100% bolt-on installation - no cutting, grinding, or welding required

Specifications

• Part Number: 704140
• Front Lift: 4"
• Spindle Material: One-Piece Ductile Iron
• Finish: E-Coated Black
• Tire Clearance: Up to 35" with proper wheel offset; 33"x11.50" on 8"-9" wide rim
• Wheel Requirement: Minimum 17"x8" with maximum 6.25" backspacing
• Drivetrain: 2WD Only
• Position: Front Left and Front Right
• Quantity: 2 spindles per order (pair)

Included Components

• 2x 4" Front Lift Spindles (Left and Right, Ductile Iron, E-Coated)
• 2x DOT-Approved Extended Front Brake Lines
• 1x Hardware Kit (all necessary mounting hardware)

Product Description

The MaxTrac 704140 is a pair of 4" front lift spindles engineered specifically for the 2021-2025 Ford F-150 2WD, first debuted at the 2021 SEMA Show. By replacing the factory steering knuckle with a taller one-piece ductile iron unit machined to OE specifications, the front ride height is raised a full 4" without modifying the struts, springs, or any other suspension components. Factory shocks and coil springs are retained, and the installation is fully bolt-on - no cutting, grinding, welding, or expensive crossmember kits required.

The spindles are E-coated black for corrosion protection and come with extended DOT-approved brake lines to safely accommodate the new ride height. With the right wheel and tire setup, this kit can clear up to 35" tires for a truly aggressive stance and improved off-road capability. Tremor, Hybrid, BlueCruise, and CCD suspension models are not compatible. A professional front-end alignment is required after installation.