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Fitment Applications GBP sections needs to be in: 1973-1977 GM A-Body - Chevelle, Monte Carlo, etc. 1978-1987 GM G-Body - Regal, Malibu, Monte Carlo, etc. 1982-2003 GM S-10 & S-15 Truck & Blazer (2WD Only)
Easy Bolt-In Installation! Remove the existing front shocks and springs and the QA1 Pro Coil System bolts right in. Specially Designed Conical Springs These springs are designed so that the lower end sits on the coil-over shock's adjustable spring seat and the upper end sits in the original spring pocket in the frame. This allows for the use of a longer and lighter spring for more stored energy, offering increased weight transfer. Greater durability is also achieved by locating the spring pressure in the frame and not on a single stud. Ride Height Adjustable- The threaded aluminum shock body allows for easy on-the-vehicle ride height adjustments. The QA1 Pro Coil System Includes: (2) QA1 Proma Star 18 way single adjustable coil-over shocks Note our listing states 12 way (2) Conical springs All required mounting hardware Spring Rates: This kit includes 450# springs.Look at the available spring rates and their applications below. If you would like a different spring rate we have them available. The spring rate chart below is a general guideline. The best spring rate will vary depending on your application, usage, and personal preference.
Kit Part#
Spring Rate
Application
Front End Weight
GS401-11250C
250#
Lightweight Drag Race Vehicle
1500#-1600#
GS401-11300C
300#
1601#-1700#
GS401-10350C
350#
1701#-1800#
GS401-10400C
400#
Most Small Block Vehicles
1801#-1900#
GS401-10450C
450#
1901#-2000#
GS401-10500C
500#
2001#-2100#
GS401-10550C
550#
Most Big Block Vehicles
2101#-2200#
GS401-10600C
600#
2201#-2300#
GS401-10650C
650#
2301#-2400#