GD401 Front Pro Coil Coilover Shock, Double Adjsutable, GM, No Springs QA1 GD401 10650C GM Pro Coil Over Systems, Double Adjustable, 650Lbs QA1 Shock Absorber And Coil Spring Assembly RCK52384 eBay QA1 Precision Products MR301 Coilover Spring and Shock Assembly QA1 GS401 Coil Over Shock Absorber RV and Auto Parts QA1 Shock Absorber And Coil Spring Assembly RCK52387 eBay. These QA1 GM Pro Coil Systems are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro Coil Systems, the American made lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications. Adjustable Pro Coil System Features: Available in independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag "R" Series adjustable, Lightweight Billet Aluminum Coil Over Shocks, High Travel Springs, Easy, Bolt In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs, Non Adjustable Pro Coil System Features: Steel, Stock Appearing Coil Over Shocks, High Travel Springs, Easy, Bolt In Installation, Ride Height Adjustable, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs Up to 2 of ride height adjustment allows you to dial in the perfect stance. Achieve the ultimate balance of ride quality and performance handling with independent tuning of rebound and compression valving. Easy bolt in installation that works with your factory or upgraded QA1 tubular control arms. Limited Lifetime Warranty for peace of mind. Proudly made in the USA Attributes: Brand Name: QA1 GTIN: 00806990062482 Active or Passive Suspension: Passive Adjustable Compression: Yes Adjustable Rebound: Yes Adjustable Ride Height: Yes Assembled: No Grade Type: Performance Internal Construction Type: Dual Tube Manufacturer Part Number: GD401 11300B Remote Reservoir: No Spring Color: Silver Spring Material: High Tensile Chrome Silicon UPC: 806990062482 Extended Information: Country of Origin: United States Emissions : Emissions Compliance Exempt Packing Information: Quantity of Each: 1 Package UOM: EA Dimension: 25 x 10 x 6 inches Weight: 20. 53 POUNDS PDF: