QA1 Pro Coil Double-Adjustable Rear Shock System with 12” 150-Lb Springs Chevy Chevelle/El Camino 1964-1972
Highlights
- 100% Dyno Tested
- Springs with 150 lb/in Rate
- 18 Positions of Adjustment
- Bolt-in Design
QA1 Pro Coil Double-Adjustable Rear Shock System with 12” 150-Pound Springs for 1964-1972 Chevy Chevelles and El Caminos.
Create the perfect, comfortable stance using QA1's Pro Coil double-adjustable rear shock system! This 100% dyno-tested system is a great fit for 1964-1972 Chevelles and El Caminos. Billet aluminum coilovers are combined with 150-pound springs. While one offers 18 clicks of adjustment, the other offers 2.25” in lowering height. Together, you’re bound to get the perfect ride quality for your street rod or autocross setup.
Features and Benefits:
- Ideal for street rod, drag racing, & autocross applications
- 100% dyno tested by QA1
- Coilovers are made of lightweight, billet aluminum
- 12” springs operate at 150 lb/in spring rate
- Max lift height: 0.5” higher than stock
- Max lowering height: 2.25” lower than stock
- 18 positions of compression & rebound adjustment
- 324 possible valving combinations
- Fully threaded body for use of aftermarket springs
- Straightforward, bolt-in installation
Additional Notes:
- The lower shock mount bracket may not work with aftermarket rear end housings.
- Requires a spanner wrench for installation, sold separately. See QA1 part numbers T114W and T115W.
California Residents: Proposition 65 Warning
Related Categories: Restomod, Suspension

Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following Chevelle years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
This product will fit the following El Camino years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,