QA1 GM Pro Front Coil-Over System – Double Adj. – 10in x 450lbs/in – Flat Large – Aluminum

SKU: GD507-10450C | UPC: 806990136602

QA1 GM Pro Front Coil-Over System – Double Adj. – 10in x 450lbs/in – Flat Large – Aluminum for 1971-1996 Impala Full Size GM Vehicles

Upgrade your 1971-1996 Impala Caprice or full-size GM vehicle with the QA1 GD507-10450C Pro Front Coil-Over System. This double adjustable kit delivers precise ride height and valving control for street driving drag racing or autocross. Lightweight aluminum shocks and 450 lb/in high-travel springs improve handling response and suspension travel over stock setups.

Key Features

• Double Adjustable Valving: Independent compression and rebound adjustments match damping to driving style from street to track
• Lightweight Billet Aluminum Body: Reduces unsprung weight for faster suspension reaction and better performance
• High Travel Springs: 10-inch travel 450 lb/in rate with fewer coils smaller wire diameter increases distance between coils for more travel
• Ride Height Adjustable: Fully threaded body lets you set perfect stance or tune weight balance for handling
• Bolt-In Design: Direct installation on compatible GM full-size vehicles no major modifications needed

Product Notes

• 100% dyno tested serialized for consistent quality
• Serviceable rebuildable at QA1 authorized centers
• Sold in pairs made in USA

Installation Notes

• Professional installation recommended.
• Bolt-in using factory style upper lower mounts
• Check lower control arm clearance after install

This Part Fits

Year	Make	Model	Submodel
1971-1996	Chevrolet	Impala	All
1971-1996	Chevrolet	Caprice	All
1991-1996	Buick	Roadmaster	All
1971-1996	Oldsmobile	Delta 88	All
1971-1994	Oldsmobile	Ninety-Eight	All
1971-1986	Pontiac	Bonneville	All

Why Choose QA1?

• Proven in drag racing street performance autocross road racing street rods
• High travel springs react faster than stock
• Engineered for full adjustability dyno validated

Frequently Asked Questions

• Q: Will this fit my 1971-1996 Chevrolet Impala?
  A: Yes direct bolt-in front coil-over replacement for Impala Caprice and other full-size GM B-body vehicles 1971-1996
• Q: What material is the shock body?
  A: Billet aluminum black anodized finish lightweight durable construction
• Q: Is the valving rebuildable?
  A: Fully serviceable rebuildable at QA1 authorized service centers nationwide

Shipping & Handling

• Method: UPS Ground
• Availability: In stock – ships same or next business day
• Packaging: Single box 28 x 12 x 10 inches
• Weight: 22 lbs