QA1 R257-170N QA1 R257-170N Four Link Kit with Narrowed 9in., 70-81 GM F Body, Double Adjust

Product Overview QA1's all-in-one solution is a perfect upgrade for your 2nd Gen Camaro or Firebird. We've combined our 4-Link Suspension Kit with a QA1 9" rear housing to deliver top-tier performance and easy installation. No more scavenging for parts or struggling with measurements—each component is designed for a perfect fit tested by QA1 to ensure hassle-free installation. Enjoy the performance adjustability and ride quality you need to handle serious power without ease. Eliminate Your Leaf Springs Upgrade from leaf springs to QA1's coilover and triangulated 4-link suspension providing ride height ride quality and instant center adjustment for an aggressive stance and added performance. Easy Installation Our 4-Link Kit with 9" housing makes for an easy installation eliminating the need for custom fabrication which gets you on the road faster. Narrowed 9" Housing Fabricated Center Section: Maximized strength and durability Formed Trailing Arm Brackets: Minimize flex under heavy loads Heavy-Duty 3" Axle Tubes: Built for high-performance 31-Spline Axles: Support up to 650HP with housing rated up to 800HP Durable Powder Coat: Sleek and long-lasting finish Convenient Maintenance: Drain plug fill plug and jack pad included T-bolts studs and high-quality roller bearings for smooth assembly and operation Helpful Specs 56-1/8" narrowed wheel mounting width Big Ford "New Style Torino Flanges" for brake compatibility 5x4-3/4" bolt pattern ideal for a range of wheels "x 3" wheel studs for alloy wheels Best-in-Class Warranty QA1 shocks come with a Limited Lifetime Warranty when registered while 4-link and 9" components have a 1-year warranty for defects Made in the USA QA1 4-link and 9" housings are proudly made in the USA Fitment Notes Confirm wheel and tire fitment before install Center section not included Narrow housing recommended for mini tubs Welding required QA1 Subframe Connectors recommended May need exhaust modification Complete Kit: Includes QA1’s 9" rear housing and triangulated 4-link designed for a perfect fit.; Easy Serviceability: Convenient access with a dedicated fill port drain plug vent port and jack plate for easy rear-end maintenance.; Adjustable Coilovers: Fine-tune your ride height and handling for a perfect stance and performance.; Easy Installation: Bolt-in design with minimal welding required reducing install time and effort.