Ridetech 11056210 HQ Rear Coil-Over Upgrade 1958-1964 Chevy B-Body Impala

Vehicle Fitment

• 1958-1964 Chevrolet Impala
• 1958-1964 Chevrolet Bel Air
• 1958-1964 Chevrolet Biscayne
• 1958-1964 Chevrolet Brookwood
• 1959-1960 Chevrolet El Camino
• 1958-1961 Chevrolet Nomad
• 1959-1960 Chevrolet Kingswood
• 1959-1960 Chevrolet Parkwood

Fitment Notes

• Includes rear lower StrongArm trailing arms and HQ Series coil-over shocks - rear upper StrongArms (part #11066698) and adjustable panhard bar (part #11069000) are sold separately and recommended for a complete system
• Lower StrongArms feature a double shear coil-over mount that positions the coil-over in place of the stock coil spring - no spring pocket modification required
• R-Joint rod ends on the lower arms provide smooth operation and eliminate roll bind
• Sold as a complete rear upgrade kit - includes all brackets and hardware

Features

• HQ Series coil-overs use impact-forged aluminum monotube bodies for excellent ride quality and fade-free damping - rebound adjustment knob provides precise tuning of compression/rebound response
• Rear lower StrongArm trailing arms replace the OEM stamped steel arms with a tubular design that uses R-Joint rod ends for smooth operation and reduced roll bind during suspension travel
• Double shear lower coil-over mount on the StrongArms keeps the load in the correct position - increases structural strength and properly locates the coil-over in the factory spring pocket location
• Hyperco coil springs with a consistent application-matched spring rate are included - engineered for long-term rate stability and consistent ride quality
• HQ Series coilovers backed by Ridetech's exclusive 1,000,001-Mile Warranty

Specifications

• Position: Rear
• Shock Design: HQ Series monotube, rebound-adjustable
• Piston Diameter: 1.834"
• Shaft Diameter: 5/8" heavy duty
• Body Construction: Impact-forged aluminum
• Springs: Hyperco (application-matched spring rate)
• Lower Arms: Tubular StrongArm trailing arms with R-Joint rod ends and double shear coilover mount
• Upper Arms: Not included (sold separately - part #11066698)
• Panhard Bar: Not included (sold separately - part #11069000)
• Shock Warranty: 1,000,001 miles
• Kit Warranty: 1 year (non-transferable from date of purchase)

Included Components

• 2x Rear HQ Series Coil-Over Shocks
• 2x Hyperco Coil Springs (application-matched spring rate)
• Rear Lower StrongArm Trailing Arms (pair) - with R-Joint rod ends, double shear coilover mount
• Mounting brackets and hardware

Product Description

The Ridetech 11056210 is a rear HQ coil-over upgrade kit specifically engineered for the 1958-1964 Chevrolet B-Body platform - covering the Impala, Bel Air, Biscayne, Brookwood, and associated wagon and El Camino variants. The kit replaces the stock rear coil springs and trailing arms with tubular lower StrongArms and HQ Series coil-over shocks, converting the rear suspension to a far more capable coil-over setup that delivers a lowered stance with dramatically improved handling and ride quality.

The lower StrongArm trailing arms use R-Joint rod ends for smooth operation and reduced roll bind, with a double shear coil-over mount that positions the HQ shock in place of the factory spring. The HQ Series coil-overs are built around impact-forged aluminum monotube bodies with 1.834" pistons and heavy-duty 5/8" shafts, providing consistent, adjustable damping backed by Ridetech's 1,000,001-mile warranty. Hyperco springs with a pre-matched spring rate are included. To complete the rear suspension upgrade, the rear upper StrongArms (part #11066698) and an adjustable panhard bar (part #11069000) are available separately and are recommended for optimal geometry and axle centering.