QA1 GM Pro Front Coil-Over System - Single Adj. 10in 450lb Flat Aluminum — Fits 1968-1971 GM

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SKU: QAPGS401-10450B
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

QA1 GM Pro Front Coil-Over System - Single Adjustable

Enhance the performance and handling of your classic GM vehicle with the QA1 GM Pro Front Coil-Over System. This system is meticulously engineered for enthusiasts seeking superior control and adjustability. It offers comprehensive options for ride height and damping adjustment, allowing you to fine-tune your suspension for optimal performance on the street or track. The single adjustable valving simplifies the tuning process.

Key Features:

  • Adjustable Ride Height: The fully threaded shock body allows for precise ride height adjustments, essential for achieving the perfect stance and optimizing weight balance for superior handling.
  • Single Adjustable Valving: Easily modify damping characteristics to suit your driving preferences and specific vehicle setup, ensuring improved control and responsiveness.
  • Lightweight High-Travel Springs: Equipped with American-made, lightweight springs designed for high travel. Their construction minimizes unsprung weight and enhances suspension responsiveness for better road feel.
  • Durable Aluminum Construction: Built with lightweight yet robust aluminum components, ensuring long-lasting durability and contributing to overall vehicle weight reduction.
  • Flat Spring Design: Features a flat spring end for secure and reliable mounting.
  • Spring Rate: Comes with a 450 lbs/in spring rate and a 10-inch free length, providing a firmer suspension setup for enhanced cornering stability and performance.

Vehicle Fitment:

This QA1 Pro Coil System is compatible with a variety of GM vehicles from 1968 to 1971, including models such as the Buick Skylark, Chevrolet Chevelle, El Camino, Oldsmobile Cutlass, and Pontiac GTO/LeMans. Please verify compatibility with your specific vehicle model and year.

Achieve a significant upgrade in your vehicle's handling dynamics and aesthetics. Experience the precision and quality that QA1 suspension components deliver. Explore this premium coil-over system and other performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1968-1972 Buick Skylark Base
1968-1972 Buick Skylark Custom
1970 Buick Skylark 350
1972 Buick Skylark 350
1968-1969 Buick Special Base
1968 Chevrolet Chevelle 300
1968 Chevrolet Chevelle Base
1968-1969 Chevrolet Chevelle 300 Deluxe
1968-1972 Chevrolet Chevelle Concours
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1968-1972 Chevrolet Chevelle SS
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1968-1972 Chevrolet El Camino Custom
1968-1972 Chevrolet El Camino SS
1971-1972 GMC Sprint Base
1972 GMC Sprint Custom
1968-1971 Oldsmobile 442 Base
1968 Oldsmobile Cutlass S
1968-1972 Oldsmobile Cutlass Base
1972 Oldsmobile Cutlass Cruiser
1968-1972 Oldsmobile Vista Cruiser Base
1968-1972 Pontiac GTO Base
1970-1971 Pontiac GTO The Judge
1968-1972 Pontiac LeMans Base
1969-1970 Pontiac LeMans Safari
1970-1972 Pontiac LeMans Sport
1971 Pontiac LeMans T37
1972 Pontiac LeMans Luxury
1968-1969 Pontiac Tempest Custom
1968-1969 Pontiac Tempest Safari
1970 Pontiac Tempest GT

Product Details

Product Description
Part Numbers
Sizing & Fit

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

QA1 GM Pro Front Coil-Over System - Single Adjustable

Enhance the performance and handling of your classic GM vehicle with the QA1 GM Pro Front Coil-Over System. This system is meticulously engineered for enthusiasts seeking superior control and adjustability. It offers comprehensive options for ride height and damping adjustment, allowing you to fine-tune your suspension for optimal performance on the street or track. The single adjustable valving simplifies the tuning process.

Key Features:

  • Adjustable Ride Height: The fully threaded shock body allows for precise ride height adjustments, essential for achieving the perfect stance and optimizing weight balance for superior handling.
  • Single Adjustable Valving: Easily modify damping characteristics to suit your driving preferences and specific vehicle setup, ensuring improved control and responsiveness.
  • Lightweight High-Travel Springs: Equipped with American-made, lightweight springs designed for high travel. Their construction minimizes unsprung weight and enhances suspension responsiveness for better road feel.
  • Durable Aluminum Construction: Built with lightweight yet robust aluminum components, ensuring long-lasting durability and contributing to overall vehicle weight reduction.
  • Flat Spring Design: Features a flat spring end for secure and reliable mounting.
  • Spring Rate: Comes with a 450 lbs/in spring rate and a 10-inch free length, providing a firmer suspension setup for enhanced cornering stability and performance.

Vehicle Fitment:

This QA1 Pro Coil System is compatible with a variety of GM vehicles from 1968 to 1971, including models such as the Buick Skylark, Chevrolet Chevelle, El Camino, Oldsmobile Cutlass, and Pontiac GTO/LeMans. Please verify compatibility with your specific vehicle model and year.

Achieve a significant upgrade in your vehicle's handling dynamics and aesthetics. Experience the precision and quality that QA1 suspension components deliver. Explore this premium coil-over system and other performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1968-1972 Buick Skylark Base
1968-1972 Buick Skylark Custom
1970 Buick Skylark 350
1972 Buick Skylark 350
1968-1969 Buick Special Base
1968 Chevrolet Chevelle 300
1968 Chevrolet Chevelle Base
1968-1969 Chevrolet Chevelle 300 Deluxe
1968-1972 Chevrolet Chevelle Concours
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1968-1972 Chevrolet Chevelle SS
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1968-1972 Chevrolet El Camino Custom
1968-1972 Chevrolet El Camino SS
1971-1972 GMC Sprint Base
1972 GMC Sprint Custom
1968-1971 Oldsmobile 442 Base
1968 Oldsmobile Cutlass S
1968-1972 Oldsmobile Cutlass Base
1972 Oldsmobile Cutlass Cruiser
1968-1972 Oldsmobile Vista Cruiser Base
1968-1972 Pontiac GTO Base
1970-1971 Pontiac GTO The Judge
1968-1972 Pontiac LeMans Base
1969-1970 Pontiac LeMans Safari
1970-1972 Pontiac LeMans Sport
1971 Pontiac LeMans T37
1972 Pontiac LeMans Luxury
1968-1969 Pontiac Tempest Custom
1968-1969 Pontiac Tempest Safari
1970 Pontiac Tempest GT

Product Details

Product Description

About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

QA1 GM Pro Front Coil-Over System - Single Adjustable

Enhance the performance and handling of your classic GM vehicle with the QA1 GM Pro Front Coil-Over System. This system is meticulously engineered for enthusiasts seeking superior control and adjustability. It offers comprehensive options for ride height and damping adjustment, allowing you to fine-tune your suspension for optimal performance on the street or track. The single adjustable valving simplifies the tuning process.

Key Features:

  • Adjustable Ride Height: The fully threaded shock body allows for precise ride height adjustments, essential for achieving the perfect stance and optimizing weight balance for superior handling.
  • Single Adjustable Valving: Easily modify damping characteristics to suit your driving preferences and specific vehicle setup, ensuring improved control and responsiveness.
  • Lightweight High-Travel Springs: Equipped with American-made, lightweight springs designed for high travel. Their construction minimizes unsprung weight and enhances suspension responsiveness for better road feel.
  • Durable Aluminum Construction: Built with lightweight yet robust aluminum components, ensuring long-lasting durability and contributing to overall vehicle weight reduction.
  • Flat Spring Design: Features a flat spring end for secure and reliable mounting.
  • Spring Rate: Comes with a 450 lbs/in spring rate and a 10-inch free length, providing a firmer suspension setup for enhanced cornering stability and performance.

Vehicle Fitment:

This QA1 Pro Coil System is compatible with a variety of GM vehicles from 1968 to 1971, including models such as the Buick Skylark, Chevrolet Chevelle, El Camino, Oldsmobile Cutlass, and Pontiac GTO/LeMans. Please verify compatibility with your specific vehicle model and year.

Achieve a significant upgrade in your vehicle's handling dynamics and aesthetics. Experience the precision and quality that QA1 suspension components deliver. Explore this premium coil-over system and other performance parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1968-1972 Buick Skylark Base
1968-1972 Buick Skylark Custom
1970 Buick Skylark 350
1972 Buick Skylark 350
1968-1969 Buick Special Base
1968 Chevrolet Chevelle 300
1968 Chevrolet Chevelle Base
1968-1969 Chevrolet Chevelle 300 Deluxe
1968-1972 Chevrolet Chevelle Concours
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1968-1972 Chevrolet Chevelle SS
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1968-1972 Chevrolet El Camino Custom
1968-1972 Chevrolet El Camino SS
1971-1972 GMC Sprint Base
1972 GMC Sprint Custom
1968-1971 Oldsmobile 442 Base
1968 Oldsmobile Cutlass S
1968-1972 Oldsmobile Cutlass Base
1972 Oldsmobile Cutlass Cruiser
1968-1972 Oldsmobile Vista Cruiser Base
1968-1972 Pontiac GTO Base
1970-1971 Pontiac GTO The Judge
1968-1972 Pontiac LeMans Base
1969-1970 Pontiac LeMans Safari
1970-1972 Pontiac LeMans Sport
1971 Pontiac LeMans T37
1972 Pontiac LeMans Luxury
1968-1969 Pontiac Tempest Custom
1968-1969 Pontiac Tempest Safari
1970 Pontiac Tempest GT

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