{"product_id":"qa1-gm-pro-front-coil-over-system-gd401-11300a-double-adjustable-11in-300lbs-pigtail-aluminum","title":"QA1 GM Pro Front Coil-Over System - Double Adj. - 11in x 300lbs\/in - Pigtail - Aluminum","description":"\u003ch4\u003eAdjustable Front Suspension Control\u003c\/h4\u003e\u003cp\u003eThe GD401-11300A QA1 GM Pro Front Coil-Over System provides adjustable ride height and double-adjustable damping control for vehicle-specific GM front suspension applications. Its aluminum coil-over shocks and 11-inch, 300 lb.\/in. pigtail springs are designed for street performance, autocross, road racing, drag racing and street rod use.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGD401-11300A is the exact QA1 configuration described on this page\u003c\/li\u003e\n\u003cli\u003eDouble-adjustable shock valving\u003c\/li\u003e\n\u003cli\u003eFront GM Pro Coil system\u003c\/li\u003e\n\u003cli\u003eAluminum coil-over shocks\u003c\/li\u003e\n\u003cli\u003e11-inch high-travel pigtail springs\u003c\/li\u003e\n\u003cli\u003e300 lb.\/in. spring rate\u003c\/li\u003e\n\u003cli\u003eFully threaded shock bodies for ride-height adjustment\u003c\/li\u003e\n\u003cli\u003eSold as a pair\u003c\/li\u003e\n\u003cli\u003eServiceable and rebuildable through QA1 authorized service centers\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003ePosition\u003c\/th\u003e\n\u003cth\u003eRestrictions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuick, Chevrolet, Oldsmobile and Pontiac\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003ctd\u003eVehicle-specific GM application. Verify year, model, engine, body style and suspension configuration before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967 Chevrolet Camaro\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003ctd\u003eThe exact product appears in Camaro coil-over search results, but direct year-specific fitment is not confirmed in the supplied record. Verify application before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet Camaro Z28\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003ctd\u003eThe exact product appears in Camaro Z28 coil-over search results, but direct model-specific fitment is not confirmed in the supplied record. Verify application before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eQA1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eGD401-11300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart type\u003c\/td\u003e\n\u003ctd\u003eFront Coilover System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle position\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock adjustment\u003c\/td\u003e\n\u003ctd\u003eDouble adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring length\u003c\/td\u003e\n\u003ctd\u003e11 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring rate\u003c\/td\u003e\n\u003ctd\u003e300 lb.\/in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring design\u003c\/td\u003e\n\u003ctd\u003ePigtail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock construction\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRide-height adjustment\u003c\/td\u003e\n\u003ctd\u003eThreaded shock body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003ePair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eOne pair of front Pro Coil systems, as identified for GD401-11300A\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eAbout QA1\u003c\/h4\u003e\u003cp\u003eQA1 develops adjustable suspension components for street performance, drag racing, autocross, road racing and street rod applications. Its Pro Coil systems are dyno tested, serialized and designed to be serviceable and rebuildable through authorized service centers.\u003c\/p\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the GD401-11300A?\u003c\/strong\u003e\u003cp\u003eIt is a QA1 GM Pro Front Coil-Over System with double-adjustable damping, an 11-inch spring, a 300 lb.\/in. spring rate, a pigtail spring design and aluminum construction.\u003c\/p\u003e\u003cstrong\u003eIs this coil-over system universal?\u003c\/strong\u003e\u003cp\u003eNo. It is a vehicle-specific GM front suspension application.\u003c\/p\u003e\u003cstrong\u003eWhat type of damping adjustment does it use?\u003c\/strong\u003e\u003cp\u003eThe system uses independent double-adjustable shock valving for compression and rebound control.\u003c\/p\u003e\u003cstrong\u003eWhat is the spring rate?\u003c\/strong\u003e\u003cp\u003eThe included spring rate is 300 lb.\/in.\u003c\/p\u003e\u003cstrong\u003eHow long are the springs?\u003c\/strong\u003e\u003cp\u003eThe springs are 11 inches long.\u003c\/p\u003e\u003cstrong\u003eIs ride height adjustable?\u003c\/strong\u003e\u003cp\u003eYes. The fully threaded shock body allows ride-height adjustment.\u003c\/p\u003e\u003cstrong\u003eHow many coil-over systems are included?\u003c\/strong\u003e\u003cp\u003eThe product is sold as a pair.\u003c\/p\u003e\u003cstrong\u003eWho should install this system?\u003c\/strong\u003e\u003cp\u003eInstallation should be performed by a qualified technician using appropriate spring-compression and vehicle-support equipment, followed by a professional wheel alignment.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm GD401-11300A matches the listed application and configuration before disassembly.\u003c\/li\u003e\n\u003cli\u003eRecord the vehicle ride height before beginning work.\u003c\/li\u003e\n\u003cli\u003ePark the vehicle on a level surface, support it securely with a floor jack and jack stands, and remove the front wheels.\u003c\/li\u003e\n\u003cli\u003eDisconnect the sway-bar end links as required for access.\u003c\/li\u003e\n\u003cli\u003eSupport the front suspension and use a suitable coil-spring compressor to relieve spring tension before separating suspension components.\u003c\/li\u003e\n\u003cli\u003eDo not remove a ball-joint castle nut until spring tension has been safely relieved. Separate the lower ball joint with an appropriate separator.\u003c\/li\u003e\n\u003cli\u003eRemove the original front shock mounts and lower shock mounts. On applicable GM cars, remove the factory control-arm welded shock-mount nuts or U-clips. Enlarge mounting holes only as required by the installation instructions.\u003c\/li\u003e\n\u003cli\u003eInstall the QA1 spring seat and lock nuts in the specified position for the system. Lubricate the shock threads with anti-seize lubricant.\u003c\/li\u003e\n\u003cli\u003eInstall each pigtail spring with the pigtail aligned to the upper spring-pocket recess when applicable.\u003c\/li\u003e\n\u003cli\u003eInstall the supplied GM lower shock fasteners and reconnect the lower ball joint. Tighten suspension fasteners to the applicable factory specification and install a new cotter pin where required.\u003c\/li\u003e\n\u003cli\u003eReconnect the sway-bar links and reinstall the wheels.\u003c\/li\u003e\n\u003cli\u003eAdjust ride height with the QA1 spanner wrench. Do not use pliers or other tools on the adjuster.\u003c\/li\u003e\n\u003cli\u003eSet the vehicle on the ground, settle the springs by carefully bouncing the vehicle, and recheck ride height.\u003c\/li\u003e\n\u003cli\u003eTighten the ride-height lock nut after the desired height is established.\u003c\/li\u003e\n\u003cli\u003eComplete a professional wheel alignment after installation.\u003c\/li\u003e\n\u003cli\u003eDo not exceed 18 damping clicks and do not use the shock as a droop limiter.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":46502948700239,"sku":"QAPGD401-11300A","price":948.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/qa1-gd401-11300a-gm-pro-front-coil-over-system-double-adjustable-aluminum-pigtail-01.jpg?v=1787847474","url":"https:\/\/www.blackopsautoworks.com\/products\/qa1-gm-pro-front-coil-over-system-gd401-11300a-double-adjustable-11in-300lbs-pigtail-aluminum","provider":"Black Ops Auto Works","version":"1.0","type":"link"}