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FSD26 IS LIVE: Every $1 spent = 150 entries to win a 2024 F-350 Limited + $20,000 cash.
1 8
QA1

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

4.7 store rating · 576 reviews
SKU: QAPR901N

Fits 1967–1969 Chevrolet Camaro, 1968 Chevrolet Chevy II and more

All 15 applications
$3,101.99
Only 2 left. Ships in 1–2 business days.Free shipping on orders over $2,000.
465150 Entries150X
This purchase enters you to win FSD26, a 2024 F-350 Limited and $20,000 cash. See the truck · No purchase necessary
  • Authorized dealerGenuine QA1 parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
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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

Installation Instructions
  • 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

Reviews

What customers say

Verified reviews collected by Loox from real orders.

Good to know

Questions, answered straight.

If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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Why buy here

A diesel shop that sells parts, not a website that sells boxes.

Every part on this site is one our own techs can stand behind.

  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

The shop floor
The shop floor
In-house fabrication
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Engine work
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Authorized dealer for 140+ brands

All brands
  • 7+ Years in business
  • 6+ Shop technicians
  • 30,000+ In-stock SKUs
  • 25+ Trucks given away
FSD shop interior - trucks on lifts The shop floor, Nazareth, PA

Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

Call 908-223-9744 Text us Email

Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.

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