The 175-lb/in rear springs are specific to this X-body four-link package. Match the Ridetech mounts first, then set ride height with the car at operating weight. A spring adjuster can move a seat; it cannot correct the wrong suspension mount.
 
Fitment
Manufacturer-listed 1968 Chevy II, 1969-1974 Nova and the Buick/Oldsmobile/Pontiac model/year rows below.
Requires the matching Ridetech Bolt-On 4-Link, sold separately; stock leaf-spring mounting is not covered.
Manufacturer-listed models: 1973-1974 Buick Apollo; 1968 Chevrolet Chevy II; 1969-1974 Chevrolet Nova; 1973-1974 Oldsmobile Omega; 1968-1971 Pontiac Acadian; 1971-1974 Pontiac Ventura.
 
Specifications
Part 11266510; two rear HQ single-adjustable shocks with 5.2-inch stroke and two 12-inch, 175-lb/in springs.
Manual center-to-center lengths: 11.23 inches compressed, 14.50 inches at design ride height, and 16.43 inches extended.
 
Included
HQ shock pair, coil springs, Delrin spring washers, upper spring plates and retainers, lower spring adjusters and locks, and upper bearing-half spacers.
 
Before ordering and installation
Use the correct Ridetech 4-Link mounting hardware and supplied spacer arrangement. Inventory the separate link kit before installation.
Follow the exact manual's initial spring-seat setting. With full vehicle weight on the suspension, jounce and roll the car before judging ride height.
Do not lower the seat until the spring loses retention at full extension. Check full-travel tire, spring, axle and exhaust clearance.
Begin rebound adjustment at the part manual's 12-click baseline and tune the finished vehicle. No fixed lowering amount is promised.
Manufacturer product information
Exact manufacturer installation instructions