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QA1 GS401-10600C GM Pro-Coil Front Coilover System Single Adjustable 600 lb/in

(Chevrolet Silverado 1500 1999-2006, S10 1982-2004, Malibu 1975, 1978-82, C1500 1990-98, Chevelle 1973, El Camino 1973-87, Monte Carlo 1973-88 + 20 more models)

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

GS401-10600C
10 reviews
Sale Price

$789.95

Estimated ship date Monday, November 23

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Product Details

The QA1 GS401-10600C GM Pro-Coil Single Adjustable Front Coilover System is an excellent bolt-in suspension upgrade for GM muscle cars and classic vehicles. Featuring a pair of QA1's GS401 single adjustable Pro-Coil shocks paired with specially designed 10-inch, 600 lb/in tapered flat large-diameter springs, this complete kit delivers a dramatic improvement in stance, ride quality, and handling over factory suspension.

The single adjustable valving provides 18 positions of simultaneous compression and rebound adjustment, allowing you to dial in a soft, comfortable cruise or a firm, performance-oriented setup — all with a simple turn of the adjuster knob. Ride height is fully adjustable from 0 to –2 inches by rotating the spring seat nut, with no special tools required beyond a spanner wrench. For drops greater than 2 inches, the addition of drop spindles is recommended.

Key Features:

  • Includes (2) QA1 GS401 single adjustable Pro-Coil shocks and (2) 10 in. tapered flat large-diameter 600 lb/in springs
  • 18 positions of simultaneous compression and rebound adjustment
  • 0 to –2 inches of ride height adjustability via spring seat nut
  • Bolt-in design compatible with OE stamped steel control arms and QA1 tubular control arms
  • High-travel, USA-made coil springs with reduced wire diameter and fewer coils for more usable travel and decreased unsprung mass
  • All necessary mounting hardware included
  • Designed for big block engine applications
  • Shocks manufactured in Lakeville, Minnesota, USA
  • Eligible for QA1 Limited Lifetime Warranty (registration required at QA1.net/Warranty)

What's Included:

  • (2) QA1 GS401 Single Adjustable Pro-Coil Shocks
  • (2) 10HTBF600 Tapered Flat Large Diameter Springs (10 in., 600 lb/in)
  • All mounting hardware

Required Accessories (sold separately): Spanner Wrench P/N T114W or T115W. Optional thrust bearing kits available under P/N 7888-109.

The QA1 GS401-10600C Pro-Coil system is the ideal solution for GM muscle car owners seeking a refined stance, tunable ride quality, and reliable street performance without invasive modifications.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2006, S10 1982-2004, Malibu 1975, 1978-82, C1500 1990-98, Chevelle 1973, El Camino 1973-87, Monte Carlo 1973-88, Nova 1975-79; Pontiac Grand Prix 1973-87, Grand Am 1973-75, 1978-80, Bonneville 1978-87 + 16 more models

Title

QA1 Coilover Spring and Shock Assembly GS401-10600C

Prop 65

WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Best price and easy to use web site.

Great Prices

Quick, straightforward, like Amazon pay

Low price no tax free shipping count me in

They have great prices! The same item I purchased from autoplicity is on summit racing for triple the price! This is my first order and I am very happy, will order from again!

Autoplicity had the best price on the part I needed and was in stock. Easy ordering process and good correspondence.

Easy site to use One great security issue the company actualy calls you to confirm the purchase to avove fraud. Excellent job!! i will buy from you again. Bill

Autoplicity had great communication, good prices, and got the item in the mail quickly. Would definitely order through them again.

Very pleasant, easy process. Hopefully part ships quickly as my car is out of service until the part arrives.

It took a day or two for them to ship my order, but it arrived quickly once shipped. The price was by far the best available.

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