{"product_id":"qa1-single-adjustable-gm-pro-front-coil-over-system-10in-400-lb-in-flat-billet-aluminum-qapgs401-10400b","title":"QA1 GM Pro Front Coil-Over System Single Adjustable | 1968-1972 Chevelle, Cutlass, GTO \u0026 Skylark | 10in x 400 lb\/in Flat Billet Aluminum | GS401-10400B","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\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: GS401-10400B\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1968 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1969 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1970 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1971 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1972 Buick Skylark\u003c\/li\u003e\n\u003cli\u003e1968 Buick Special\u003c\/li\u003e\n\u003cli\u003e1969 Buick Special\u003c\/li\u003e\n\u003cli\u003e1968 Chevrolet Chevelle\u003c\/li\u003e\n\u003cli\u003e1969 Chevrolet Chevelle\u003c\/li\u003e\n\u003cli\u003e1970 Chevrolet Chevelle\u003c\/li\u003e\n\u003cli\u003e1971 Chevrolet Chevelle\u003c\/li\u003e\n\u003cli\u003e1972 Chevrolet Chevelle\u003c\/li\u003e\n\u003cli\u003e1968 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1969 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1970 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1971 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1972 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1971 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1972 GMC Sprint\u003c\/li\u003e\n\u003cli\u003e1968 Oldsmobile 442\u003c\/li\u003e\n\u003cli\u003e1969 Oldsmobile 442\u003c\/li\u003e\n\u003cli\u003e1970 Oldsmobile 442\u003c\/li\u003e\n\u003cli\u003e1971 Oldsmobile 442\u003c\/li\u003e\n\u003cli\u003e1968 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1969 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1970 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1971 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1972 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1968 Oldsmobile Vista Cruiser\u003c\/li\u003e\n\u003cli\u003e1969 Oldsmobile Vista Cruiser\u003c\/li\u003e\n\u003cli\u003e1970 Oldsmobile Vista Cruiser\u003c\/li\u003e\n\u003cli\u003e1971 Oldsmobile Vista Cruiser\u003c\/li\u003e\n\u003cli\u003e1972 Oldsmobile Vista Cruiser\u003c\/li\u003e\n\u003cli\u003e1968 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e1969 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e1970 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e1971 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e1972 Pontiac GTO\u003c\/li\u003e\n\u003cli\u003e1968 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1969 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1970 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1971 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1972 Pontiac LeMans\u003c\/li\u003e\n\u003cli\u003e1968 Pontiac Tempest\u003c\/li\u003e\n\u003cli\u003e1969 Pontiac Tempest\u003c\/li\u003e\n\u003cli\u003e1970 Pontiac Tempest\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 GS401-10400B fit?\u003c\/h5\u003e\u003cp\u003eQA1 GS401-10400B is listed to fit 1968-1972 Chevelle, Cutlass, GTO \u0026amp; Skylark. 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 GS401-10400B fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"QA1 GS401-10400B is listed to fit 1968-1972 Chevelle, Cutlass, GTO \u0026 Skylark. 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":41846065823792,"sku":"QAPGS401-10400B","price":789.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/5ca8728ba07ffc3666bc60fb881e98dd_e8caf1e5-bc46-4230-a637-538d2d4cdf2c.jpg?v=1739510446","url":"https:\/\/berryperformancesales.com\/products\/qa1-single-adjustable-gm-pro-front-coil-over-system-10in-400-lb-in-flat-billet-aluminum-qapgs401-10400b","provider":"Berry Performance Sales","version":"1.0","type":"link"}