Fox 2007+ Chevy 1500 Front 2.5 Factory Series 5.8in. R/R Coilover /4-6.5in. Lift w/DSC Adj *BDS Only

Race-Proven FOX 2.5 Factory Series Coilover with Dual Speed Compression for 2007-2018 Chevrolet Silverado 1500 and GMC Sierra 1500

The FOX883-06-059 brings race-bred suspension technology directly to your BDS-lifted 2007-2018 Chevy Silverado 1500 or GMC Sierra 1500. Designed exclusively to pair with BDS 4 to 6.5-inch lift systems, this 2.5-inch remote reservoir coilover delivers the damping control and ride quality that FOX has refined over decades of desert racing. The FOX 883-06-059 features an integrated Dual Speed Compression (DSC) adjuster, letting you dial in exactly how your truck responds to everything from highway cruising to technical off-road terrain.

Key Features

• 2.5-inch smooth bore, zinc-plated seamless steel body with black-anodized 6061-T6 billet aluminum components
• Dual Speed Compression (DSC) adjuster with 12 low-speed and 10 high-speed compression settings for precise tuning
• Remote reservoir design provides additional oil volume and nitrogen gas capacity for superior heat dissipation during hard off-road use
• Application-specific Eibach racing spring included, pre-set to level the vehicle right out of the box
• 7/8-inch hard chrome-plated steel shaft resists corrosion and scoring under heavy use
• Zinc-plated and double-clear coated body for long-lasting finish in harsh environments
• Adjustable ride height via spanner wrench on main spring retainer
• Engineered specifically for BDS 4 to 6.5-inch lift kit applications on 2007-2018 Silverado 1500 and Sierra 1500
• Sold as a set (pair)

Vehicle Fitment

Specifications

What's Included

• 2x FOX 2.5 Factory Series remote reservoir front coilovers (pair)
• Application-specific Eibach racing springs (pre-installed)
• Remote reservoir mounting hardware and hose clamps
• DSC adjuster knobs (installed)
• FOX installation guide

About FOX

FOX Factory has been engineering race-winning suspension since 1974, with a heritage rooted in off-road desert racing. Every FOX shock is tested to extreme standards before it reaches the aftermarket, drawing from the same technology used in SCORE Baja 1000 trophy trucks and professional rally programs. The result is a product line trusted by enthusiasts and professional builders who demand performance under real-world conditions.

Frequently Asked Questions

The FOX883-06-059 is a 2.5-inch Factory Series front coilover with a remote reservoir and Dual Speed Compression adjuster, designed for 2007-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks equipped with BDS 4 to 6.5-inch lift kits. It is sold as a pair and includes application-specific Eibach racing springs.

No. The FOX883-06-059 is engineered specifically to interface with BDS 4 to 6.5-inch lift system geometry. It requires a BDS lift kit and an aftermarket upper control arm (UCA) for proper fitment and alignment. It will not fit the factory suspension.

The FOX883-06-059 supports 4 to 6.5 inches of front lift when paired with the correct BDS suspension system. Ride height is adjustable via the main spring retainer using a spanner wrench.

The Dual Speed Compression adjuster on the FOX883-06-059 provides separate tuning for low-speed and high-speed compression damping. Low-speed (12 settings) controls body roll and dive during street driving, while high-speed (10 settings) governs impact absorption over rocks, ruts, and rough terrain.

No. The FOX883-06-059 is specific to the 2007-2018 Silverado 1500 and Sierra 1500 platform. For 2019 and newer models, FOX and BDS offer different part numbers for the T1 body style.

Yes. FOX and BDS both specify that aftermarket upper control arms (UCAs) are required when installing the FOX883-06-059. Do not install with stock upper control arms. Consult your UCA manufacturer for installation details.

FOX Factory coilovers are backed by a limited lifetime warranty against defects in materials and workmanship for the original purchaser. Warranty coverage does not apply to normal wear and tear, improper installation, or use in competition racing.

To adjust ride height on the FOX883-06-059, lift the vehicle, loosen the pinch bolt on the main spring retainer (do not remove it), then turn the retainer with a spanner wrench to raise or lower preload. If the shock has locking rings, loosen the top lock ring first and re-tighten after adjustment.

Torque the three top hat bolts or nuts to 24 ft-lbs. Torque the two lower bar-pin bolts to 50 ft-lbs. Always reinstall wheels and lower the vehicle before final ride height measurement and adjustment.

Installation Instructions

1. Lift the vehicle and support it safely. Remove the front wheels.
2. Disconnect and remove the factory front shock and spring assembly.
3. Install the new aftermarket upper control arm per UCA manufacturer instructions.
4. Route the remote reservoir hose so the driver-side reservoir faces toward the center of the vehicle and the passenger-side reservoir faces toward the rear.
5. Connect the top hat of the coilover to the shock tower using supplied hardware. Torque to 24 ft-lbs.
6. Install the reservoir bracket to the center outer mounting hole of the top hat.
7. Attach the reservoir to the bracket using the supplied hose clamps via the bracket slots.
8. Connect the lower eyelet mount to the lower control arm. Torque bar-pin bolts to 50 ft-lbs.
9. Reinstall the front wheels and torque to factory specification.
10. Lower the vehicle to the ground and drive forward and back several feet to allow the suspension to settle.
11. Measure ride height and adjust the main spring retainer as needed using a spanner wrench.
12. Steer lock-to-lock in both directions to verify proper clearance of all components before driving.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.