My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

QA1 GD401-10550B GM Pro Coil Double Adjustable Shock Kit with 550lb Spring

(Pontiac GTO 1968-72, LeMans 1968-72, Tempest 1968-72; Chevrolet Chevelle 1968-72, El Camino 1968-72; Oldsmobile Cutlass 1968-72, 442 1968-72 + 5 more models)

Manufacturer

Picture for manufacturer QA1 Precision Products

Part Number

GD401-10550B
13 reviews
Sale Price

$964.95

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The QA1 Precision Products GD401-10550B is a complete front coilover shock kit designed for GM vehicles, featuring double-adjustable aluminum shocks with stock mounting provisions. This professional-grade suspension system allows independent adjustment of both compression and rebound damping for precise tuning of your vehicle's handling characteristics.

Key Specifications:

  • Compressed length: 10.13 inches
  • Extended length: 14 inches
  • Stroke: 3.87 inches
  • Aluminum shock body construction
  • Double-adjustable valving (compression and rebound)
  • Stock mounting configuration

Included Components:

  • Double-adjustable coilover shocks
  • 10-inch coil springs with 550 lb/in spring rate
  • Tapered flat spring ends for proper seating
  • All necessary mounting hardware

This kit provides professional-level suspension performance with the adjustability needed for street performance, autocross, or road racing applications. The double-adjustable design allows you to dial in the perfect balance between ride comfort and handling performance, while the 550 lb/in spring rate provides firm support for spirited driving.

Products specifications

Fits

Pontiac GTO 1968-72, LeMans 1968-72, Tempest 1968-72; Chevrolet Chevelle 1968-72, El Camino 1968-72; Oldsmobile Cutlass 1968-72, 442 1968-72, F85 1968-72, Vista Cruiser 1968-72; Buick Skylark 1968-72, Special 1968-69; GMC Sprint 1971-72

Adjustable Mounting Bracket Included

No

Adjustable Valving

Yes

Coil-Over Kit Position

Front

Coil-Over Springs Included

Yes

Compressed Height

9

Crossmember Included

No

Extended Height

12.8

Gas Charged

No

Internal Design

Twin-tube

Notes

Designed to fit 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

576

Quantity

Sold as a kit.

Recommended Front-End Weight

2,101-2,300 lbs.

Ref No

26

Shock Body Finish

Clear anodized

Shock Body Material

Aluminum

Shocks Included

Yes

Spring Finish

Silver powdercoated

Spring Rate (lbs/in)

550 lbs./in.

Suspension Height Adjustment

Stock

Welding Required

No

Prop 65

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

Title

QA1 Shock Absorber and Coil Spring Assembly GD401-10550B

Fast easy and convenient

quick

Seems relatively painless so far.

Found part easily.

So far, very easy. Price, Delivery Time and Quality were very Good. Thank You.

Great transaction

Great so far

Excellent

great so far.

Best prices online for a locker and pretty fast shipping too!

Quick and easy

Low prices, Fast shipping and great service!

Very good

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy