QA1 Launches New Ford 9-Inch Rearend Upgrade For F-Body, Nova
For enthusiasts and performance builders with 1967-69 and 1970-81 GM F-body (Camaro and Firebird) or 1968-1972 Chevrolet Nova vehicles, QA1’s new Ford 9-inch rearend and 4-link suspension kits offer a complete, one-click solution to outfit your vehicle with a direct-fit modern suspension and highly capable driveline package. Known for their durability and modular design, Ford 9-inch rearends have long been a top choice for high-performance applications, from the street to the track. QA1 enhances this platform with precision-engineered housings designed for superior strength and ease of installation, alongside fully adjustable 4-link suspension kits that improve handling and support wide tire setups.
QA1’s Ford 9-Inch
QA1’s 9-inch housing is fabricated with a focus on strength and lightweight performance, rated to handle up to 800 horsepower. The housing features 3-inch axle tubes with a 1/4-inch wall thickness, delivering exceptional rigidity without unnecessary weight. The housing is designed to accommodate both stock and mini-tubbed builds, with an available narrowed width option that provides maximum clearance for wider tires. The housing includes pre-welded QA1 brackets, engineered for direct compatibility with F-body and X-body (Chevrolet Nova and Pontiac Ventura) 4-link systems, reducing installation time and eliminating guesswork.
The removable third member, a key feature of the Ford 9-inch design, simplifies gear swaps and maintenance. This modularity allows builders to adjust gear ratios quickly, providing flexibility for different performance setups without removing the entire rear assembly. QA1’s 9-inch housing and axle package is ready for you to drop your third member in and go. Combined with QA1’s focus on high-quality components and user-friendly features, such as integrated fill and drain ports, the 9-inch housing is an ideal solution for high-performance applications requiring robust, easy-to-maintain hardware.
Seamless Integration with QA1’s 4-Link Suspension
QA1’s 9-inch rearend system saves time by eliminating the need to research component compatibility and acquire parts from multiple sources. QA1 has configured these systems to best benef
The 4-link suspension kit included with QA1’s 9-inch rearend system provides substantial upgrades over stock leaf spring setups. Designed for direct bolt-in installation, this system offers full adjustability for ride height, ride quality, and handling characteristics, allowing for precise tuning. The triangulated 4-link eliminates the need for a locating device, improving handling dynamics and minimizing potential obstructions under the vehicle, simplifying the installation process. QA1’s narrowed housing option pairs seamlessly with the 4-link kit, allowing builders to maximize wheel and tire fitment, especially in mini-tubbed cars.
This rearend and suspension system offers a cohesive, performance-focused package, designed to improve cornering, traction, and overall responsiveness while supporting a wide range of brake and wheel configurations.
SHOP 4-LINK SYSTEMS WITH 9' HOUSINGS
Brake Compatibility and Axle Specifications
The 9-inch rearend platform is known for its flexibility in accommodating various brake setups. QA1’s design retains this advantage by using Big Ford “Torino” style ends, compatible with a range of aftermarket brake options. Builders can easily integrate high-performance disc brakes, including larger rotors and multi-piston calipers, without additional modifications. The housing’s 2.5-inch axle offset ensures proper fitment with most brake kits, making it a versatile choice for street or track applications.
The included 31-spline axle shafts are rated for up to 650 horsepower, providing durability and reliability in high-stress environments. QA1 further simplifies the installation process by pre-installing roller bearings and pressing in wheel studs, reducing assembly time.
Key Features & Specifications
Complete Kit: Includes QA1’s 9-inch rear housing and triangulated 4-link, designed for a perfect fit in first and second generation Chevrolet Camaro and Pontiac Firebird, as well as 1968-72 Chevy Nova and Pontiac Ventura vehicles.
Adjustable Coilovers: Fine-tune your ride height and handling for a perfect stance and performance.
Fabricated Ford 9-Inch Housing: Engineered for strength, rated for 800 horsepower, with 3-inch axle tubes and 1/4-inch wall thickness.
Stock and Narrowed Width Options: Stock width at 60 inches WMS-to-WMS, narrowed option at 54.75 inches for wider tire fitment in mini-tubbed builds.
31-Spline Axles: Rated for 650 horsepower, durable and compatible with a wide range of third member options.
Big Ford “Torino” Style Ends: Ensures compatibility with most aftermarket brake systems, including large rotor and multi-piston caliper setups.
Brake Compatibility: Supports both drum and disc brake options with a 2.5-inch axle offset for proper alignment.
Pre-Welded QA1 Trailing Arm & Sway Bar Brackets: Specifically designed for use with QA1’s 4-link suspension system, no additional welding required.
Pre-Installed Roller Bearings: Ready to install out of the box, reducing setup time for builders.
Wheel Studs: 5x4.75 bolt pattern, 3-inch studs for thicker alloy wheels, pressed in for ease of installation.
User-Friendly Design: Integrated fill and drain ports, vent port, and jack pad come standard for simplified maintenance.
Great Looks: QA1’s 9-inch rearend housing comes powdercoated for a refined appearance and long-lasting finish.
Available Configurations
Offered as housing-only, housing with axles and 4-link suspension kit, or part of a complete vehicle kit.
Standard width option
– 60” WMS (1969-81 Camaro and Firebird and 1968-72 Nova and Ventura)
– Easy to fit option
Narrowed width option
– 54-3/4” WMS
– Narrowed ~2.5” per side
– Allows for maximum width wheel and tire packages in mini tubbed cars
– Narrows further than leaf spring housings
Required Additional Components
Brakes: Source a brake kit for a 9-inch rear with Big Ford "Torino" Flanges and 2.5-inch axle offset
Third member: 31 spline
Driveshaft: potentially
Wheels (If Changing): 5x4-3/4-inch pattern
- Larger diameter depending on brake choice
- Housing width can determine appropriate wheel offset
- Stock width will be direct fit with any wheel offset that works with factory
- Note: Narrowed option moves WMS inboard by 2.5-inch per side
QA1’s Ford 9-inch rearend and 4-link suspension kits provide an all-in-one solution that combines superior strength, precise handling, and flexible brake and wheel options. For builders looking to take their classic Camaro, Firebird, or Nova project to the next level, this product delivers the performance and ease of installation needed to support modern high-horsepower builds.