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QA1 GD401-10500A Front Pro Coil Double Adjustable Coilover Shock Kit GM 500lb/in Spring

(1967-1969 Chevrolet Camaro; 1968-1974 Chevrolet Nova; 1968-1974 Chevrolet Chevy II; 1967-1969 Pontiac Firebird; 1971-1974 Pontiac Ventura + 2 more models)

Part of: QA1 Pro Coil Double Adjustable Shock Kit GM Spring

Other options in this family: QA1 Precision Products GD501-10500C QA1 Precision Products GD401-10350C QA1 Precision Products GD401-11300C QA1 Precision Products GD501-11250C QA1 Precision Products GD501-11300C

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

GD401-10500A
10 reviews
Sale Price

$964.95

2 left at this price

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Usually delivered within 2 days

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Product Details

The QA1 GD401-10500A is a front Pro Coil double adjustable coilover shock kit designed as a bolt-in performance upgrade for GM muscle cars. Built around a lightweight billet aluminum shock body, this kit pairs a double adjustable damper with a 10-inch, 500 lb/in high-travel coil spring featuring a tapered pigtail end for a complete, ready-to-install coilover assembly.

The double adjustable shock delivers independent compression and rebound control with 18 positions on each adjustment knob, providing 324 unique valving combinations to dial in the perfect balance of ride quality and handling performance — whether on the street or at the track. Ride height is fully adjustable with up to 2 inches of drop achievable via a simple turn of the spring seat nut on the fully threaded shock body.

Key Features:

  • Double adjustable valving — 18 positions of independent compression and 18 positions of rebound adjustment (324 total combinations)
  • Compressed length: 10.13 inches | Extended length: 14 inches
  • Included spring: 10-inch length, 500 lb/in spring rate with tapered pigtail end
  • 500 lb/in spring rate is ideal for front axle weights of 2,001–2,100 lbs
  • Up to 2 inches of ride height adjustability via threaded shock body
  • Lightweight billet aluminum construction reduces unsprung weight
  • High-travel USA-made springs with fewer coils and smaller wire diameter for maximum stroke
  • Bolt-in installation — compatible with OE stamped steel or QA1 tubular control arms
  • 100% dyno tested and serialized at the factory
  • Serviceable and rebuildable by QA1 Authorized Service Centers
  • Eligible for QA1 Limited Lifetime Warranty (registration required)
  • Proudly made in Lakeville, Minnesota, USA

The included high-travel spring features a smaller wire diameter and fewer coils than conventional springs of equivalent rate and length, resulting in increased usable travel and reduced unsprung mass for improved suspension response. The kit is sold as a pair and requires a spanner wrench (QA1 P/N T114W or T115W) for installation. Optional thrust bearing kit (QA1 P/N 7888-109) is available to simplify spring seat adjustments.

Products specifications

Fits

1967-1969 Chevrolet Camaro; 1968-1974 Chevrolet Nova; 1968-1974 Chevrolet Chevy II; 1967-1969 Pontiac Firebird; 1971-1974 Pontiac Ventura; 1973-1974 Oldsmobile Omega; 1973-1974 Buick Apollo

Adjustable Mounting Bracket Included

No

Adjustable Valving

Yes

Coil-Over Kit Position

Front

Coil-Over Springs Included

Yes

Collapsed Length (in)

10.130 in.

Compressed Height

9

Crossmember Included

No

Extended Height

12.8

Extended Length (in)

14.000 in.

Gas Charged

No

Internal Design

Twin-tube

Lower Mount

Bar pin

Notes

Double adjustable coil-overs, designed to fit applications with big block engines. Shocks are remote ready, they can be used with the QA1 two or four channel remote adjustable system.

Number of Valving Selections

324

Quantity

Sold as a kit.

Ref No

15

Shock Body Finish

Clear anodized

Shock Body Material

Aluminum

Shocks Included

Yes

Spring Finish

Silver powdercoated

Spring Rate (lbs/in)

500 lbs./in.

Suspension Height Adjustment

0.0-2.0 in. lowered front

Threaded Adjustment Range

3.000 in.

Upper Mount

Stud

Welding Required

No

Title

QA1 Shock Absorber and Coil Spring Assembly GD401-10500A

Prop 65

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

Really couldn't beat the price, I tried to find a better price and couldn't. I just wish it didn't take so long to ship it. I placed my order 4 days ago on a Sunday night hoping to get it by Saturday. They just shipped it today on Thursday. So now I have to wait through this weekend and next week. I ordered other things from different companys on the same day and received from them already. So I guess that's price I pay for a good deal.

Order arrived quick and was as described.

It took over 30 min to place this order. your pay site has problems.

I reciently ordered some spark plug wires from Autoplicity and I must say it was a great experience. The shipping was fast and they had the best price I could find. I will def order parts for my truck from them again.

very fast processing

Quick and easy! the best!

Quick and easy to pay. I used my Amazon account

Product was cheapest I could find and shipping was super fast. Not sure how you could go wrong with them.

Ordered a DiabloSport tuner for my truck here, as they had the lowest prices on the web with shipping. Order was placed on Saturday and shipped Monday. Although I received my tracking number on Tuesday, I was pleasantly surprised that they had already shipped it out. Nonetheless, my transaction was flawless. I would order from them again with no doubts.

Great service. Shipped out the day after I ordered it...plus it was the cheapest of the competition.

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