QA1 68-72 GM X-Body Double Adjustable Rear Four Link Kit w/ Narrowed 9in Housing

QA1 R258-170N Four Link Kit with Narrowed 9in., 68-72 GM X Body, Double Adjust Product Overview QA1's all-in-one solution is a perfect upgrade for your 68-72 X Body Nova. 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 coilovers 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 54-3/4" 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

• 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
• Complete Kit: Includes QA1's 9" rear housing and triangulated 4-link, designed for a perfect fit

Upgrade your 1968-1972 GM X-Body Nova or Pontiac Ventura with the QA1 R258-170N Double-Adjustable Four-Link Kit, engineered to replace factory leaf springs with a high-performance triangulated four-link and coilover suspension system. This complete solution includes a QA1 narrowed 9-inch rear housing, eliminating the need to source individual components or determine custom measurements. Designed for serious street and performance applications, the kit provides improved ride quality, adjustable ride height, and instant-center tuning for enhanced traction and handling.

The narrowed 9-inch housing features a fabricated center section, heavy-duty 3-inch axle tubes, formed trailing-arm brackets, and durable powder coating. It is designed for high-performance 31-spline axles and supports applications up to 650 horsepower, while the housing is rated for up to 800 horsepower. Big Ford New Style Torino flanges support a wide range of brake options, while the 5 x 4.75-inch wheel bolt pattern and included wheel studs provide compatibility with many popular wheel choices. A fill port, drain plug, vent port, jack plate, T-bolts, studs, and roller bearings simplify service and assembly.

Double-adjustable QA1 coilovers allow precise control of suspension setup, stance, and handling characteristics. The bolt-in-oriented design helps reduce installation time and custom fabrication, although welding is required. The narrowed housing is recommended for vehicles equipped with mini tubs, and wheel and tire clearance should be confirmed before installation. Exhaust modifications may be necessary, and QA1 subframe connectors are recommended for additional chassis support. The center section is not included. QA1 four-link and 9-inch housing components are proudly made in the USA, with a 1-year warranty against defects; registered QA1 shocks include a Limited Lifetime Warranty. Fits 1968-1972 Chevrolet Chevy II, Chevrolet Nova, and Pontiac Ventura applications.

Features:

• Application: Fits 1968-1972 GM X-Body Chevrolet Chevy II, Chevrolet Nova, and Pontiac Ventura models
• Complete Kit: Includes a QA1 narrowed 9-inch rear housing and triangulated four-link suspension components
• Adjustable Coilovers: Double-adjustable shocks allow tuning of ride height, handling, and suspension response
• Performance Upgrade: Replaces leaf springs to improve ride quality, traction, stance, and instant-center adjustment
• Housing Strength: Fabricated center section, heavy-duty 3-inch axle tubes, and formed trailing-arm brackets support demanding applications
• Power Capacity: Designed for 31-spline axles up to 650 horsepower, with the housing rated up to 800 horsepower
• Brake Compatibility: Big Ford New Style Torino flanges accommodate a variety of brake systems
• Wheel Compatibility: Uses a 5 x 4.75-inch bolt pattern with wheel studs suitable for many alloy wheels
• Easy Serviceability: Includes a fill port, drain plug, vent port, and jack plate for convenient rear-end maintenance
• Installation: Bolt-in-oriented design reduces fabrication requirements, though welding may be required
• Fitment Note: Narrowed housing is recommended for mini tubs; wheel, tire, exhaust, and chassis clearance must be verified
• Manufacturing: QA1 four-link and 9-inch housing components are made in the USA

Fitment:
Chevrolet Chevy II Nova 1968
Chevrolet Nova Base 1969
Chevrolet Nova Base 1970
Chevrolet Nova Base 1971
Chevrolet Nova Base 1972
Pontiac Ventura Base 1971
Pontiac Ventura Base 1972