{"product_id":"qa1-64-66-ford-mustang-rear-suspension-conversion-system-single-adj-130lb-in","title":"QA1 64-66 Ford Mustang Rear Suspension Conversion System - Single Adj. 130lb\/in","description":"\u003cp\u003eTransform the way your early Mustang handles with QA1’s rear four-link kit. Designed for 1964–1966 Mustangs, this single adjustable four-link replaces the factory leaf springs with a modern suspension system that delivers improved traction, adjustability, and ride quality. Whether you’re building a street machine or a track-capable restomod, QA1’s four-link gives you the control and confidence you need. MODERN HANDLING FOR YOUR CLASSIC MUSTANG Factory leaf springs were never designed for today’s performance expectations. QA1’s four-link suspension eliminates axle wrap, controls wheel hop, and keeps the tires planted under hard acceleration and cornering. The 18-click, single adjustable shocks allow you to fine-tune ride quality and handling, giving your Mustang a balance of comfort and performance. RIDE HEIGHT \u0026amp; ADJUSTABILITY This kit offers a ride height adjustment range from the stock ride height to 3” lower than factory. That means you can dial in the perfect stance for your build, whether you’re looking for a lowered, aggressive look or stock-like ride height with modern performance benefits. WELD-IN INSTALLATION For maximum strength and durability, this kit requires welding during installation. QA1 engineered the brackets to be self-fixturing, making the process as straightforward as possible. Once installed, the system integrates seamlessly into your Mustang chassis.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePolyurethane bushings reduce noise while maintaining strength\u003c\/li\u003e\n\u003cli\u003eComplete kit includes shocks, brackets, hardware, and links\u003c\/li\u003e\n\u003cli\u003eSingle adjustable shocks for fine-tuning ride and handling\u003c\/li\u003e\n\u003cli\u003eSelf-fixturing weld-in brackets for easier installation\u003c\/li\u003e\n\u003cli\u003eWorks with factory axle housings or QA1 9” housings\u003c\/li\u003e\n\u003cli\u003eRide height adjustability: 3” of adjustment\u003c\/li\u003e\n\u003cli\u003eProvides predictable traction and stability\u003c\/li\u003e\n\u003cli\u003ePowder-coated components for durability\u003c\/li\u003e\n\u003cli\u003eEliminates axle wrap and wheel hop\u003c\/li\u003e\n\u003cli\u003eFits 1964–1966 Ford Mustangs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1964-1966\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1965-1966\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT-350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT-350H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":42269220110407,"sku":"QAPR123-130","price":2383.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0570\/5069\/3703\/files\/617412e92160187470efb50f42a84a4aL.jpg?v=1765115642","url":"https:\/\/raceonlyparts.com\/products\/qa1-64-66-ford-mustang-rear-suspension-conversion-system-single-adj-130lb-in","provider":"Race Only Parts","version":"1.0","type":"link"}