{"product_id":"qa1-pro-rear-weld-in-coil-over-system-double-adj-12in-x-150lbs-in-3in-tube-aluminum","title":"QA1 Pro Rear Weld-In Coil-Over System - Double Adj. - 12in x 150lbs\/in - 3in Tube - Aluminum","description":"\u003cdiv\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eDD501-12150\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 806990063144\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cstrong\u003eQA1 Pro Rear Weld-In Coil-Over System - Double Adjustable - 12\" x 150 lb\/in - 3\" Tube - Aluminum\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eQA1 DD501-12150\u003c\/strong\u003e Pro Rear Weld-In Coil-Over System is the ultimate custom suspension upgrade for drag racing, street performance, and street rod builds using 3\" rear axle tubes. This complete double-adjustable system features lightweight aluminum shocks with independent 18-position compression and 18-position rebound tuning (324 possible combinations), paired with 12\" high-travel 150 lb\/in springs for excellent weight transfer and consistent performance. The weld-in design allows precise installation and ride height adjustment for the perfect stance and handling balance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDouble Adjustable Shocks: Independent compression and rebound tuning with 18 clicks each (324 combinations)\u003c\/li\u003e\n\u003cli\u003e150 lb\/in Springs: Lightweight high-travel rate ideal for drag, street, and performance applications\u003c\/li\u003e\n\u003cli\u003e12\" Spring Length: Optimized for maximum travel and lowered setups\u003c\/li\u003e\n\u003cli\u003e3\" Tube Specific: Designed for weld-in on vehicles with 3\" rear axle tubes\u003c\/li\u003e\n\u003cli\u003eLightweight Aluminum Construction: Reduces unsprung weight for better performance\u003c\/li\u003e\n\u003cli\u003eFully Rebuildable\/Revalveable: Serviceable by QA1 or authorized centers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable width=\"100%\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eDD501-12150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eRear Weld-In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Type\u003c\/td\u003e\n\u003ctd\u003eDouble Adjustable Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate\u003c\/td\u003e\n\u003ctd\u003e150 lb\/in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Length\u003c\/td\u003e\n\u003ctd\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle Tube Diameter\u003c\/td\u003e\n\u003ctd\u003e3 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCustom Drag, Street Performance \u0026amp; Street Rod Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eWeld-In Coil-Over Conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited Lifetime (QA1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003eApprox. 25-35 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePair of QA1 Double Adjustable Rear Coil-Over Shocks\u003c\/li\u003e\n\u003cli\u003ePair of 12\" x 150 lb\/in High-Travel Springs\u003c\/li\u003e\n\u003cli\u003eAll Mounting Hardware \u0026amp; Brackets for 3\" Axle Tubes\u003c\/li\u003e\n\u003cli\u003eDetailed Installation Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for weld-in installation on vehicles with 3\" rear axle tubes\u003c\/li\u003e\n\u003cli\u003e150 lb\/in spring rate is a lighter rate suitable for drag racing and street performance builds\u003c\/li\u003e\n\u003cli\u003eProfessional welding and alignment recommended\u003c\/li\u003e\n\u003cli\u003eMay require driveline angle adjustments depending on application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEstimated time: 6-10 hours (welding required), advanced difficulty\u003c\/li\u003e\n\u003cli\u003eWeld-in system requires professional fabrication skills\u003c\/li\u003e\n\u003cli\u003eFull rear alignment and driveline angle check required after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCustom Builds with 3\" Rear Axle Tubes\u003c\/td\u003e\n\u003ctd\u003eDrag Racing, Street Performance, Street Rods – Weld-In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhy Choose QA1 Pro Rear Weld-In Coil-Over System?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFull double-adjustable control for perfect weight transfer and handling\u003c\/li\u003e\n\u003cli\u003eLightweight aluminum shocks with high-travel springs for maximum performance\u003c\/li\u003e\n\u003cli\u003ePremium QA1 quality made in the USA with lifetime warranty confidence\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is this a bolt-on or weld-in kit? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This is a weld-in system designed for 3\" rear axle tubes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What spring rate is included? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e 150 lb\/in lighter rate ideal for drag and street performance applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Covered by QA1’s limited lifetime warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS \/ FedEx Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure protective packaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 25-35 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":44520916090959,"sku":"QAPDD501-12150","price":1021.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/qa1-dd501-12150-coilover-system.png?v=1772229745","url":"https:\/\/www.blackopsautoworks.com\/products\/qa1-pro-rear-weld-in-coil-over-system-double-adj-12in-x-150lbs-in-3in-tube-aluminum","provider":"Black Ops Auto Works","version":"1.0","type":"link"}