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QA1 GD508-10650C GM Front Pro Coil System, 650 lbs
QA1 GD508-10650C GM Front Pro Coil System, 650 lbs

QA1 GD508-10650C GM Front Pro Coil System, 650 lbs

63-65 Buick Riviera, 650 lbs. Spring Rate, Double Adjustable Shock Adjustability

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QA1 GD508-10650C GM Front Pro Coil System, 650 lbs
QA1 GD508-10650C GM Front Pro Coil System, 650 lbs
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We estimate this item will ship on or before August 21st.
Part # 721GD50810650C
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 business days for QA1 to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


Spring Rate:
650 lbs.
Shock Adjustability:
Double Adjustable
Shock Body Material:
Sold in Quantity:


These QA1 GM Pro Coil Systems are available for 1963-1965 Buick Rivieras. They 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 and simultaneous compression and rebound 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
Some parts are not legal for use in California or other states with similar laws/regulations

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