Ridetech Specs: HQ Air Suspension System for 1955-1957 Chevy Car w/ 1 piece frame.

RideTech Front & Rear Air Suspension System – 1955-1957 Chevy Bel Air, 210 & 150

Get the ultra-low show stance your Tri-Five deserves with the complete RideTech Front & Rear Air Suspension System for 1955–1957 Chevy Bel Air, Two-Ten, and One-Fifty models. This all-in-one air ride package delivers modern handling, adjustable ride height, and exceptional ride quality — all engineered specifically for your vehicle.

RideTech has already done the research, testing, and tuning to match spring rates, geometry, and components for optimal performance. No guesswork. Just a fully integrated system designed to work together.

Complete front and rear air suspension package
Fits 1955–1957 Chevy Bel Air, 210 & 150
Includes front upper and lower StrongArms
Includes front MuscleBar (sway bar)
Includes bolt-on rear 4-Link
Includes (4) HQ Series ShockWaves
Provides ultra-low stance with excellent ride quality
Corrected suspension geometry for improved handling
Engineered spring rates and matched components

Front Upper StrongArms (corrected ball joint angles, 1/2" taller ball joints)
Front Lower StrongArms with double shear lower mount
Front sway bar with billet aluminum frame straps and low-friction bushings
Bolt-on rear 4-Link with R-Joint rod ends
(4) HQ Series ShockWaves (front and rear)

Upper StrongArms move the ball joint rearward to allow additional caster for improved high-speed stability and steering feel.
Lower StrongArms feature a double shear lower mount for added strength.
HQ Series ShockWaves use an impact-forged aluminum body and monotube design with rebound adjustment at the top of the shock for easy access.
Rear 4-Link requires minimal welding to the axle tube and no major floor pan modifications.
Air Compressor Systems are not included. 
Professional installation recommended.

Fits:
1955-1957 Chevrolet Bel Air*
1955-1957 Chevrolet Two-Ten*
1955-1957 Chevrolet One-Fifty*

*Not compatible with wagons using the stock fuel tank.

Rear ShockWaves:
Compressed: 10.75"
Ride Height: 12.75"
Extended: 14.25"
Diameter: 4"
Load Capacity: 780 lbs @ 100 PSI
Bearing Type: Teflon-lined
Bracket Width: 1-1/4"
Bolt Size: 1/2" or 5/8"
Airline Size: 1/4"

Front ShockWaves (Center of Bearing to Center of Bearing):
Compressed: 11.00"
Extended: 14.50"
Ride Height Range: 13.10"–14.50"

Frame Identification Guide
1-Piece Frame (“California” frame): Smooth, flat bottom under driver door area.
2-Piece Frame: Visible weld seam along bottom center of frame rail front to rear.