{"product_id":"qa1-r257-170n-four-link-kit-with-narrowed-9in-70-81-gm-f-body-double-adjust","title":"QA1 R257-170N Four Link Kit with Narrowed 9in. | 70-81 GM F Body - Double Adjust","description":"\u003cp\u003e\u003cstrong\u003eQA1 R257-170N Four Link Kit with Narrowed 9in. | 70-81 GM F Body - Double Adjust\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQA1’s one-click solution gives you everything you need to get your ’70-’81 Camaro or Firebird project on the road—fast. We’ve paired our 4-Link Suspension Kit with a custom QA1 Narrowed 9\" rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components. Every piece in this package is tested by QA1 to fit the first time. This kit delivers the performance, ride quality, and adjustability you need to handle serious power and aggressive driving— without the frustration of piecing things together.\u003c\/p\u003e\n\u003ch4\u003eELIMINATE YOUR LEAF SPRINGS\u003c\/h4\u003e\n\u003cp\u003eDitch your leaf springs for QA1 coilovers, triangulated 4-link suspension and an all-new, narrowed 9\" rear end. QA1 4-link kits were fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver.\u003c\/p\u003e\n\u003ch4\u003eEASY INSTALLATION\u003c\/h4\u003e\n\u003cp\u003eQA1 is committed to delivering products that make upgrading your car as simple as possible. Our 4-Link kits with 9’’ housing is designed for a bolt-on installation, eliminating the need for custom fabrication.\u003c\/p\u003e\n\u003ch4\u003ePERFORMANCE 9” HOUSING\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNarrowed Housing \u003c\/strong\u003eto accommodate wide wheel and tire packages in mini tubbed cars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFabricated Center Section\u003c\/strong\u003e engineered for maximum strength and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormed Trailing Arm Brackets\u003c\/strong\u003e reduce flex under high loads, ensuring your suspension remains rigid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 3” OD, ¼” Wall Axle Tubes\u003c\/strong\u003e provide the durability needed for high-performance applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e31-Spline 1541H Alloy Axles\u003c\/strong\u003e support up to 650HP, with the housing handling up to 800HP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Semi-Gloss Powder coat Finish\u003c\/strong\u003e offers long-lasting protection and a clean, sleek look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrain Plug, Fill Plug, and Jack Pad\u003c\/strong\u003e come standard to make service a breeze.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes T-bolts and Housing Studs \u003c\/strong\u003efor assembling axle shafts and installing third members\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-quality Roller Bearings\u003c\/strong\u003e for smooth operation and long-lasting reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHelpful Specifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e56-1\/8” narrowed wheel mounting surface width. Narrowed 2-1\/2” per side for use with mini tubs for wider wheel and tires\u003c\/li\u003e\n\u003cli\u003eBig Ford “New Style Torino Flanges” with 2.5” axle offset for easy brake compatibility\u003c\/li\u003e\n\u003cli\u003e5x4-3\/4” factory bolt pattern, standard fitment and a wide range of wheel options\u003c\/li\u003e\n\u003cli\u003e½” x 3” wheel studs for better fit with alloy wheels\u003c\/li\u003e\n\u003cli\u003e2.770” hub diameter\u003c\/li\u003e\n\u003cli\u003eRequires third member for Ford 9” housings with 31 spline axles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBEST IN-CLASS WARRANTY\u003c\/h4\u003e\n\u003cp\u003eQA1 shocks are eligible for a Limited Lifetime Warranty. For peace of mind, simply register your shocks at QA1.com\/warranty to ensure coverage for as long as you own your vehicle. The 4-link and 9” components come with a 1-year warranty against manufacturer defects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES AND BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes QA1’s 9\" rear housing and triangulated 4-link, designed for a perfect fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Serviceability\u003c\/strong\u003e: Convenient access with a dedicated fill port, drain plug, vent port, and jack plate for easy rear-end maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Coilovers:\u003c\/strong\u003e Fine-tune your ride height and handling for a perfect stance and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Bolt-in design with minimal welding required, reducing install time and effort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFITMENT NOTES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify wheel and tire fitment on vehicle prior to installation.\u003c\/li\u003e\n\u003cli\u003eCenter section (3\u003csup\u003erd\u003c\/sup\u003e member) not included\u003c\/li\u003e\n\u003cli\u003eNarrowed housing recommended to be used with custom offset wheels and mini tubs\u003c\/li\u003e\n\u003cli\u003eWelding required.\u003c\/li\u003e\n\u003cli\u003eQA1 Subframe Connectors strongly recommended.\u003c\/li\u003e\n\u003cli\u003eMay require exhaust modification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"cm_FitmentTable\"\u003e\n\u003cdiv class=\"cm_fitment-table fitment-table-container\"\u003e\n\u003cdiv class=\"fitment-table-title vehicle-specific\"\u003e\u003cspan style=\"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);\"\u003e\u003cb\u003e\u003ci\u003e\u003cu data-olk-copy-source=\"MailCompose\"\u003eVehicle Applications:\u003c\/u\u003e\u003c\/i\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"cm_fitment-table__horizontal cmTemplate_horizontal\"\u003e\n\u003cdiv class=\"fitment-table-body fitment-table-header\"\u003e\n\u003cdiv class=\"fitment-row\"\u003e\n\u003cdiv class=\"fitment-cell fitment-field-model\"\u003e\n\u003cdiv class=\"fitment-cell__value\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fitment-table-body fitment-table-fitment cmRepeater_alwaysVisibleValues\"\u003e\n\u003cdiv class=\"fitment-row\"\u003e\n\u003cdiv class=\"fitment-cell fitment-field-year\"\u003e\n\u003cdiv class=\"fitment-cell__value\"\u003e1970 - 1981 Chevrolet Camaro\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fitment-row\"\u003e\n\u003cdiv class=\"fitment-cell fitment-field-year\"\u003e\n\u003cdiv class=\"fitment-cell__value\"\u003e1970 - 1981 Pontiac Firebird\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":67977577234677,"sku":"R257-170N","price":4569.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/5809\/8165\/files\/2nd-Gen-9-inch-4-link-web-sizingDA001__13188.webp?v=1793980075","url":"https:\/\/suspension-engineering.com\/products\/qa1-r257-170n-four-link-kit-with-narrowed-9in-70-81-gm-f-body-double-adjust","provider":"Suspension Engineering","version":"1.0","type":"link"}