QA1's complete lowering kit transforms your F-150 with aggressive stance and precision handling. The front features adjustable Pro Coil coilovers paired with drop spindles for maximum customization, while the rear flip kit with shackle/hanger maintains ride comfort. Independent compression and rebound adjustability on the double-adjustable shocks lets you dial in perfect performance—whether cruising streets or attacking the track. Drop your truck and elevate your control.
Why it hits
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Full-range stance control: Front coilovers with spindles deliver a 3"–5" drop; rear system delivers 3.5"–5.5" with 1" increments for perfect rake.
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Heavy-duty build for trucks: Upgraded shock bodies, poly bushings, and a 1" chromoly T-bar handle modern F-150 weight and payload.
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Track-grade tuning: Double-adjustable shocks (independent C/R) sharpen response and let you dial comfort vs. control.
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Bolt-in simplicity: No welding; engineered brackets and hardware for a clean, reversible install.
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Ride quality up, not down: Geometry + valving work together for composed daily driving and confident cornering.
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Best-in-class coverage: Lifetime shock warranty.
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Made in USA: Designed and built in Lakeville, Minnesota.
Drop ranges (vehicle dependent)
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Front: 3"–5" (with included drop spindles)
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Rear: 3.5"–5.5", adjustable in 1" steps
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4×4 note: Rear drop is effectively ~1" more vs. 2WD due to removal of the OE block.
What it fits
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Ford F-150 2015–2020 (2WD & 4×4 rear compatibility noted below)
What’s in the box
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QA1 Pro Coil front coilovers (heavy-duty assemblies with 1" chromoly T-bar & poly bushings)
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Front drop spindles (OE/aftermarket compatible)
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Rear flip brackets + shackle & hanger kits (multi-position)
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QA1 double-adjustable shocks (front & rear)
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Mounting hardware & instructions
Fitment notes (read before you buy)
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Wheels/tires:
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Requires 22" aftermarket wheels or larger with ≤ 6.0" backspacing for guaranteed clearance.
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Most factory 20" wheels fit.
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Factory 22" wheels do not fit.
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Ball-joint trimming may be required depending on wheel diameter/backspacing.
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Rear fits both 2WD and 4×4.
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Spindles: Compatible with OEM or aftermarket drop spindles (included).
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Always verify brake rotor/caliper clearance after mock-up.
Install notes
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Bolt-in system—no welding.
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Set initial ride height on the coilovers, then lock collars.
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Choose rear shackle/hanger positions to land your target rake.
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Alignment required immediately after install (aim for maximum positive caster within spec).
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Re-torque after the first 100–300 miles and after aggressive driving.
Tech specs
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Adjustability: Front ride height (coilover), rear in 1" increments, double-adjustable shocks (independent compression & rebound)
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Front drop: 3"–5" (w/ spindles)
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Rear drop: 3.5"–5.5" (1" steps)
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Shock design: Heavy-duty QA1 with 1" chromoly T-bar & poly bushings
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Warranty: Lifetime shock warranty (manufacturer)
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Origin: Made in USA (Lakeville, MN)
Builder’s checklist
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Decide final wheel/tire & offset/backspacing before install (clearance drives spindle/arm decisions).
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Pick your target rake; set coilover height and rear position to match.
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Plan for alignment and headlight aim after lowering.
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Street vs. track? Start shocks around mid-clicks, then tune compression for roll control and rebound for ride/oscillation.
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