QA1 5/5 Double-Adjustable Lowering Kit for 2021-2026 Ford F-150 4WD

Bring a four-wheel-drive F-150 down evenly with matched suspension hardware

QA1 LK12-FF06 is the complete 5/5 lowering package for 2021-2026 Ford F-150 4WD trucks. It combines double-adjustable front coilovers, drop spindles, rear drop hardware, double-adjustable rear shocks, and traction bars for a coordinated stance and tunable response.

Key Features

• LK12-FF06 is configured specifically for 2021-2026 F-150 4WD applications
• Five-inch front and five-inch rear nominal lowering package
• Double-adjustable front coilovers and rear shocks
• Drop spindles preserve suspension geometry better than spring-only lowering
• Rear traction bars are included to control axle movement
• Bolt-in system uses application-specific brackets and hardware

Fitment

Specifications

What's Included

• QA1 LK12-FF06 matched front and rear lowering components
• Double-adjustable front coilovers, drop spindles, rear shocks, rear drop brackets, traction bars, and related hardware shown in the exact kit
• Wheels, tires, alignment service, brake components, and unrelated chassis parts are not included

About QA1

QA1 engineers application-specific lowering systems as coordinated packages rather than isolated springs. Its F-150 kits combine geometry-correcting hardware, adjustable dampers, and axle-control components to support measured ride-height and handling changes.

Related Parts

• No internal companion part is linked because wheel, tire, brake, sway-bar, and alignment choices must be verified against the exact 4WD truck configuration and final ride height.

FAQ

It is QA1's complete double-adjustable 5/5 lowering package for supported 2021-2026 Ford F-150 4WD trucks.

No. This exact configuration is for 4WD trucks; QA1 lists a different part number for 2WD applications.

Yes. The complete package includes the application-specific front spindles.

Yes. Rear traction bars are included in this exact kit configuration.

Yes. The supplied front coilovers and rear shocks are double adjustable for separate compression and rebound tuning.

Final ride height can vary with cab, bed, options, payload, wheel and tire package, and initial vehicle condition.

Clearance must be measured on the exact wheel, tire, brake, and spindle combination before the truck is driven.

A professional alignment, complete torque check, brake-hose and driveline clearance inspection, and low-speed road test are required.

Installation Instructions

1. Confirm the truck is a 2021-2026 F-150 4WD and inventory every LK12-FF06 component against the current QA1 instructions.
2. Measure baseline ride height and alignment, support the truck safely, and remove the original components in the documented sequence.
3. Install the front coilovers and drop spindles, checking brake, hub, ABS wiring, steering, wheel, and tire clearances before loading the suspension.
4. Install the rear drop hardware, shocks, and traction bars with the axle supported and all brackets oriented exactly as shown by QA1.
5. Torque fasteners at the specified suspension position, set equal preliminary damping, and verify driveline, brake-hose, exhaust, tire, and body clearance through travel.
6. Perform a professional alignment and cautious road test, then recheck height, torque, and clearances after the initial service interval.

California Proposition 65 Warning: This product can expose you to chemicals including antimony oxide and other chemicals known to the State of California to cause cancer or reproductive harm. For more information, visit www.P65Warnings.ca.gov.