QA1 40in Diagonal Link Kit w/ Mounting Brackets & Tube Adapters - 7838-1068

Product Overview: QA1's Diagonal Link Kit helps streamline the fabrication process, of building a drag race style 4-Link. This diagonal link kit pairs up great with the QA1 HD Pro Rear 4-Link systems, but can be easily adaptable into most drag race setups. High quality, MIG-weldable components ensure a safe and properly engineered design. Performance and Adaptable Design: This heavy-duty design can handle the demands of high-performance racing. The 1 inch diameter by 40 inch length of tubing can be cut to length to work in most setups with 40 inch or narrower frame-rails. Pre-bent and drilled mounting brackets make installation into inch trailing arm bolts a breeze. Grade 8 hardware and QA1 chromoly, high misalignment rod ends are the standard in strength and offer generous mounting flexibility. Look to the provided dimensional diagrams and renderings to help with your custom install. Kit Contents: 40 Diagonal link kit with mounting brackets and tube adapters Grade 8 hardware kit Made in the USA Fitment Notes Works on 40 in. and narrower frame rails

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Fidanza Performance is excited to offer QA1 Suspension

About - QA1 Suspension​

QA1 Precision Products, Inc., founded in 1993 and based in Lakeville, Minnesota, is a leading American manufacturer of high-performance suspension and driveline components. The company is known for producing quality coil-over kits, control arms, sway bars, adjustable shocks, and carbon fiber driveshafts, primarily for muscle cars, classic trucks, drag racing, and pro-touring builds.

QA1 stands out for its in-house engineering and manufacturing, with most products made in the USA. Their suspension systems are especially popular among enthusiasts looking to modernize older vehicles like Chevelles, Mustangs, and classic GM and Ford trucks. Known for their adjustability and durability, QA1 products are widely respected across both street and track applications.

With a strong reputation for quality and performance, QA1 supports the automotive community through events, sponsorships, and their annual open house. Their accessible performance upgrades have made them a trusted name in the aftermarket suspension world.

Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!