Check the lower arms before planning the air system. This front ShockWave pair belongs on the matching Ridetech Lower StrongArms. The 6.5-inch bellows still needs room through the whole suspension stroke; a clean ride-height photo does not check that clearance.
 
Fitment
Manufacturer-listed 1965-1970 Chevrolet B-body applications, including the exact model/year rows below.
Requires matching Ridetech Lower StrongArms, sold separately. An air supply and control system are also separate.
Manufacturer-listed models: 1965-1970 Chevrolet Bel Air; 1965-1970 Chevrolet Biscayne; 1969-1970 Chevrolet Brookwood; 1966-1970 Chevrolet Caprice; 1969-1970 Chevrolet Estate; 1965-1970 Chevrolet Impala; 1969-1970 Chevrolet Kingswood; 1969-1970 Chevrolet Townsman.
 
Specifications
Part 11283001; front pair of HQ single-adjustable ShockWaves with 3.6-inch shock stroke and 6.5-inch double-convoluted air springs.
Manual dimensions, measured center of bearing to center of bearing: 11.175 inches compressed, 12.975 inches at design ride height, and 14.050 inches extended.
Current manufacturer specification is a 1/8-inch NPT air port. Air fittings are not included.
 
Included
Two HQ shocks and air springs, stud-top mounting components, Delrin ball mounts and adjustment hardware.
 
Before ordering and installation
Follow the exact manual to remove the bump-stop bracket, trim the inner spring-pocket lip and clear the original coil-spring retainer stud. Remove the upper stem-bushing cup and enlarge the mounting hole to 3/4 inch.
The lower spacers and 1/2-inch mounting bolt come with the required StrongArms, rather than this shock pair. Inventory both kits before dismantling the car.
Keep the upper Delrin mount snug while allowing articulation. Check air-spring clearance at full compression and full extension, including exhaust clearance.
Do not drive fully deflated or overinflate to obtain ride height. Prevent the bellows from rubbing; do not alter the factory air-spring locking ring or remove the press-in fitting.
Use this part's installation and tuning instructions. The exact manual starts rebound adjustment at 12 clicks softer than full stiff; final settings depend on the assembled vehicle.
Manufacturer product information
Exact manufacturer installation instructions