{"product_id":"qa1-single-adjustable-gm-pro-front-coil-over-system-10in-400-lb-in-flat-large-billet-aluminum-qapgs501-10400c","title":"QA1 GM Pro Front Coil-Over System Single Adjustable | 1970-1981 Camaro \u0026 Firebird | 10in x 400 lb\/in Flat Large Billet Aluminum | GS501-10400C","description":"\u003cp\u003eThe QA1 GM Pro Front Coil-Over System delivers fully adjustable ride height and valving control for classic GM muscle. Built around a lightweight billet aluminum coil-over shock with a fully threaded body, it lets the ride height be dialed in for the right stance or to fine-tune weight balance for improved handling. The American-made high-travel spring uses fewer coils and a smaller wire diameter for added travel, reduced unsprung weight and faster reaction. This single adjustable version is 100 percent dyno tested and serialized, rebuildable by QA1 authorized service centers, bolts in with factory or upgraded QA1 tubular control arms, and is made in the USA. Sold in pairs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: QA1 Pro front coil-over system (sold in pairs)\u003c\/li\u003e\n\u003cli\u003eAdjustability: Single Adjustable (independent valving adjustment)\u003c\/li\u003e\n\u003cli\u003eShock body: Billet Aluminum, fully threaded\u003c\/li\u003e\n\u003cli\u003eSpring: 10in length, 400 lb\/in rate, high-travel\u003c\/li\u003e\n\u003cli\u003eSpring\/mount style: Flat Large\u003c\/li\u003e\n\u003cli\u003eInstallation: bolt-in\u003c\/li\u003e\n\u003cli\u003eWarranty: Limited Lifetime\u003c\/li\u003e\n\u003cli\u003eMade in: USA\u003c\/li\u003e\n\u003cli\u003ePart number: GS501-10400C\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1970 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1971 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1972 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1977 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet Camaro\u003c\/li\u003e\n\u003cli\u003e1970 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1971 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1972 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1973 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1974 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1975 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1976 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1977 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1978 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1979 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1980 Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1981 Pontiac Firebird\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/9b6fbad111a2499d056e81f784a08e9e.PDF\"\u003eInstallation Instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat does QA1 part number GS501-10400C fit?\u003c\/h5\u003e\u003cp\u003eQA1 GS501-10400C is listed to fit 1970-1981 Camaro \u0026amp; Firebird. The Vehicle Applications list above shows the individual years, makes and models from the QA1 fitment data for this part.\u003c\/p\u003e\u003ch5\u003eIs this coil-over single or double adjustable?\u003c\/h5\u003e\u003cp\u003eThis is the single adjustable version, which adjusts compression and rebound valving together through one adjustment for simple tuning.\u003c\/p\u003e\u003ch5\u003eWhat spring is included?\u003c\/h5\u003e\u003cp\u003eIt is supplied with a QA1 high-travel spring measuring 10in in length with a 400 lb\/in spring rate.\u003c\/p\u003e\u003ch5\u003eCan ride height be adjusted?\u003c\/h5\u003e\u003cp\u003eYes. The fully threaded shock body allows the ride height to be adjusted to set the stance or fine-tune weight balance.\u003c\/p\u003e\u003ch5\u003eIs professional installation required?\u003c\/h5\u003e\u003cp\u003eThe system is designed as a bolt-in installation using standard hand tools, so no welding or fabrication is required for a typical fitment.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does QA1 part number GS501-10400C fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"QA1 GS501-10400C is listed to fit 1970-1981 Camaro \u0026 Firebird. The Vehicle Applications list above shows the individual years, makes and models from the QA1 fitment data for this part.\"}}, {\"@type\": \"Question\", \"name\": \"Is this coil-over single or double adjustable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This is the single adjustable version, which adjusts compression and rebound valving together through one adjustment for simple tuning.\"}}, {\"@type\": \"Question\", \"name\": \"What spring is included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is supplied with a QA1 high-travel spring measuring 10in in length with a 400 lb\/in spring rate.\"}}, {\"@type\": \"Question\", \"name\": \"Can ride height be adjusted?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The fully threaded shock body allows the ride height to be adjusted to set the stance or fine-tune weight balance.\"}}, {\"@type\": \"Question\", \"name\": \"Is professional installation required?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The system is designed as a bolt-in installation using standard hand tools, so no welding or fabrication is required for a typical fitment.\"}}]}\u003c\/script\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":41846066151472,"sku":"QAPGS501-10400C","price":789.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/5ca8728ba07ffc3666bc60fb881e98dd_494c9541-b777-4f4a-9dfb-2cb5a8a20243.jpg?v=1739510450","url":"https:\/\/berryperformancesales.com\/products\/qa1-single-adjustable-gm-pro-front-coil-over-system-10in-400-lb-in-flat-large-billet-aluminum-qapgs501-10400c","provider":"Berry Performance Sales","version":"1.0","type":"link"}