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QA1 Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link R901N

QA1 Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link R901N
QA1 Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link R901NQA1 Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link R901NQA1 Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link R901NQA1 Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link R901N
$4,323.99 ea
NEWARRIVING SOONEstimated Ship Date 08/25/2025 (If Ordered Today)
Model: 5054649
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
[More Info]

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.

FEATURES AND BENEFITS

  • Fabricated Center Section engineered for maximum strength and durability.
  • Formed Trailing Arm Brackets reduce flex under high loads, ensuring your suspension remains rigid.
  • Heavy-Duty 3” OD, ¼” Wall Axle Tubes provide the durability needed for high-performance applications.
  • 31-Spline 1541H Alloy Axles support up to 650HP, with the housing handling up to 800HP.
  • Standard 5x4-3/4” Bolt Pattern for a wide range of wheel options.
  • Durable Semi-Gloss Powder coat Finish offers long-lasting protection and a clean, sleek look.
  • Drain Plug, Fill Plug, and Jack Pad come standard to make service a breeze.
  • Includes T-bolts and Housing Studs for assembling axle shafts and installing third members
  • High-quality Roller Bearings for smooth operation and long-lasting reliability

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
  • ½” 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

BEST IN-CLASS WARRANTY

QA1’s 9” housings come with a 1-year warranty against manufacturer defects.

MADE IN THE USA

QA1’s 9” housings are proudly made in the USA. 

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
About Qa1 Precision Products

From bolt-on products that get you behind the wheel faster, to experienced technicians available to help increase your 60’ times or handle curves with confidence, everything we do is designed to get you out on the road.

Whether your goal is a Saturday night sprint across the checkered flag or a slow, easy cruise down main street, we have the suspension and driveline products you need for the experience you want.

No matter what you drive, we want you to #goDRIVEit!

Downloads:

Download Name File Size
9919-347_REV_9 IN REAR AXLE HOUSING.pdf5.68MB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years
Chevrolet Camaro 1967 - 1969
Chevrolet Chevy II 1968
Chevrolet Nova 1969 - 1972
Pontiac Firebird 1967 - 1969
Pontiac Ventura 1971 - 1972

Specifications:

Part Type Axle Housing
Proposition 65 www.P65Warnings.ca.gov
Warranty Time 1 YR

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QA1 Narrowed 9in. Housing for 67-69 F and 68-72 GM X Body with QA1 4-Link R901N: