QA1 67-69 F / 68-72 X Body Ford Mustang 9in Narrowed Rear Axle Assembly

QA1 R901N Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link PRODUCT OVERVIEW Already running one of QA1's 4-Link Suspension Kits on your 1st Gen F-Body or 68-72 Nova? Now, take your build to the next level with QA1's custom 9" rear housing, engineered to integrate seamlessly with your existing QA1 setup. Designed for enthusiasts looking to improve performance and durability, this 9" housing is the perfect upgrade for handling more horsepower, and aggressive driving conditions. ENHANCE YOUR EXISTING QA1 4-LINK QA1's 9" rear housing is designed to bolt seamlessly to your QA1 4-link system, with fully formed trailing arm brackets that minimize flex under heavy loads, enhancing strength and rigidity. Whether you're increasing horsepower or seeking a more durable rear-end solution, the custom QA1 9" rear housing delivers the performance gains you need. Its bolt-on design simplifies installation, saving time in the shop. Helpful Specifications: 54-3/4" narrowed wheel mounting surface width. Narrowed 2-1/2" per side for use with mini tubs for wider wheel and tires Big Ford "New Style Torino Flanges" with 2.5" axle offset for easy brake compatibility 5x4-3/4" factory bolt pattern, standard fitment and a wide range of wheel options "x 3" wheel studs for better fit with alloy wheels 2.770" hub diameter Requires third member for Ford 9" housings with 31 spline axles EASY INSTALLATION & SERVICEABLITY QA1 is committed to delivering products that make upgrading your car as simple as possible. Our 9" housings for QA1 4-link kits are designed for a bolt-on installation, eliminating the need for custom fabrication. Servicing your 9" rear end is also straightforward, featuring a dedicated fill port, drain plug, vent port, and jack plate FITMENT NOTES Verify wheel and tire fitment on vehicle prior to installation Center section (3rd member) not included Narrowed housing recommended to be used with custom offset wheels and mini tubs Compatible only with QA1 four link suspension system

• Formed Trailing Arm Brackets reduce flex under high loads, ensuring your suspension remains rigid
• Durable Semi-Gloss Powder coat Finish offers long-lasting protection and a clean, sleek look
• Includes T-bolts and Housing Studs for assembling axle shafts and installing third members
• 31-Spline 1541H Alloy Axles support up to 650HP, with the housing handling up to 800HP
• Drain Plug, Fill Plug, and Jack Pad come standard to make service a breeze
• Narrowed width for maximum wheel and tire package

Upgrade a compatible QA1 four-link suspension system with the QA1 R901N Narrowed 9-Inch Rear Housing, engineered for 1967-1969 Chevrolet Camaro and Pontiac Firebird models, as well as 1968-1972 GM X-Body applications. This custom Ford 9-inch housing is designed to bolt directly to an existing QA1 four-link setup, providing a stronger and more durable foundation for increased horsepower, performance driving, and demanding rear suspension loads.

Formed trailing arm brackets help minimize flex under heavy loads while improving rigidity throughout the suspension system. The narrowed configuration provides additional clearance for mini-tubs and wider wheel and tire packages. It features Big Ford New Style Torino flanges with a 2.5-inch axle offset, a 5 x 4.75-inch wheel bolt pattern, and 0.5-inch wheel studs for compatibility with many aftermarket alloy wheels. The 2.770-inch hub diameter supports straightforward brake and wheel fitment planning.

This QA1 rear housing includes 31-spline 1541H alloy axles rated for applications up to 650 horsepower, while the housing is engineered to support up to 800 horsepower. T-bolts and housing studs are included for axle shaft and third-member installation. A dedicated fill port, drain plug, vent port, and jack pad simplify service and maintenance, while the semi-gloss powder coat finish provides durable protection and a clean appearance.

The QA1 R901N is intended exclusively for use with a QA1 four-link suspension system and requires a Ford 9-inch third member, which is not included. Verify wheel, tire, brake, and offset compatibility before installation. The narrowed housing is recommended for vehicles equipped with mini-tubs and custom-offset wheels. Professional installation is recommended to ensure correct setup, alignment, and drivetrain compatibility.

Features:

• Application: Designed for 1967-1969 Chevrolet Camaro and Pontiac Firebird models and 1968-1972 GM X-Body vehicles equipped with a QA1 four-link suspension system
• Bolt-On Integration: Formed trailing arm brackets provide a direct connection to the existing QA1 four-link system and help reduce flex under high loads
• Narrowed Housing: Provides additional clearance for mini-tubs and wider wheel and tire packages
• Ford 9-Inch Compatibility: Requires a Ford 9-inch third member for use with the 31-spline axle shafts
• Axle Strength: Includes 31-spline 1541H alloy axles rated for applications up to 650 horsepower
• Housing Capacity: Rear housing is designed to support applications up to 800 horsepower
• Wheel Fitment: Includes a 5 x 4.75-inch bolt pattern, 0.5-inch wheel studs, and a 2.770-inch hub diameter
• Brake Compatibility: Big Ford New Style Torino flanges feature a 2.5-inch axle offset for simplified brake selection
• Service Features: Includes a fill port, drain plug, vent port, and jack pad for easier maintenance
• Included Hardware: T-bolts and housing studs are included for axle shaft and third-member installation
• Finish: Semi-gloss powder coat provides durable protection and a clean appearance

Fitment:
Chevrolet Camaro Base 1967
Chevrolet Camaro Base 1968
Chevrolet Camaro Base 1969
Chevrolet Camaro RS 1967
Chevrolet Camaro RS 1968
Chevrolet Camaro RS 1969
Chevrolet Camaro SS 1967
Chevrolet Camaro SS 1968
Chevrolet Camaro SS 1969
Chevrolet Camaro Z28 1967
Chevrolet Camaro Z28 1968
Chevrolet Camaro Z28 1969
Chevrolet Chevy II Nova 1968
Chevrolet Nova Base 1969
Chevrolet Nova Base 1970
Chevrolet Nova Base 1971
Chevrolet Nova Base 1972
Pontiac Firebird 326 1967
Pontiac Firebird 350 1968
Pontiac Firebird 350 1969
Pontiac Firebird 350 HO 1969
Pontiac Firebird 400 1967
Pontiac Firebird 400 1968
Pontiac Firebird 400 1969
Pontiac Firebird Base 1967
Pontiac Firebird Base 1968
Pontiac Firebird Base 1969
Pontiac Firebird HO 1967
Pontiac Firebird HO 1968
Pontiac Firebird Sprint 1967
Pontiac Firebird Sprint 1968
Pontiac Firebird Sprint 1969
Pontiac Firebird Trans Am 1969
Pontiac Ventura Base 1971
Pontiac Ventura Base 1972