Ford 9-Inch Third Member Case, Aluminum, 3.25-Inch Bearing

• A356 T6 aluminum housing is up to 20 lbs. lighter than OEM “gray” iron housings
• Features aluminum carrier main caps with extra material cast in for support
• Grade 8 carrier cap bolts for enhanced strength and reduced deflection
• Billet steel carrier adjuster nuts with heavy duty keepers maintain carrier placement
• Case is designed to use 3.25-inch carrier bearings to support 35-spline carriers/spools
• Supports up to 500 horsepower and suitable for street use or occasional drag racing
• Fits any standard spec 9-inch Ford axle housing
• Perfect foundation for your custom 9-inch third member build

A Strong Aluminum 3rd Member That Saves Unsprung Vehicle Weight

Ford’s 9-inch is the undisputed king of performance rear axles for most any racing or high performance street use you can imagine. The brute strength of a properly built 9-inch means your street car can hook up with ease and not break a sweat while doing it. Combine that strength with the 9-inch housing’s ease of gear change ability via a drop out 9-inch 3rd member (or 9-inch center section as some refer to it) means you can easily change gear ratios to suit a specific power level or driving event. Taking your 4.56 geared ride on a long-distance cruise/event? Just pop in a different 3rd member with 3.50 gears and enjoy the ride! Our A356 T6 aluminum Ford 9-inch center section is the perfect foundation for your high performance street car’s 9-inch build to ensure it can handle the power you’ve built under hood. Weighing in at just 12 pounds and designed to handle up to 500 horsepower, it’s built to live a long life on the street!

Our Ford 9-inch 3rd member carrier is crafted from A356 T6 aluminum, which reduces your vehicle’s unsprung weight by up to 20 pounds when compared to OEM gray iron castings for better handling while providing the strength to put your power to the pavement! Additional material and reinforcement webbing built into the aluminum casting provides additional reinforcement. Thick aluminum bearing caps use larger 3.25-inch carrier bearings and are secured by Grade 8 carrier cap bolts. This means you have the strongest, and lightest, starting point possible for your 9-inch 3rd member build. Precision machined surfaces provide for exacting fitment of sub-components and a leak free mounting of the Ford 9-inch center section to your 9-inch axle housing.

Designed To Accept All Popular Ford 9-Inch Third Member Internals

Our aluminum Ford 9-inch third member housing is machined to accommodate the larger 3.25-inch carrier bearings required for high performance use commonly equated with differentials and spools that support 35-spline axles. We’ve even made your 9-inch Ford center section build easy, just grab one of our 9-inch 3.25 bearing kits when ordering your aluminum carrier. It includes the correct 3.25-inch bearings, Daytona pinion support bearings, shims, gaskets, and seals to get your 9-inch third member assembled correctly.

Complete your build with a matching nodular iron Daytona pinion support and compatible pinion yoke with a new pinion nut. We also highly recommend upgrading to a solid pinion spacer when building your Ford 9-inch 3rd member to eliminate gear preload changes on hard launches or when servicing the pinion yoke. These are the same components we use in our in-house assembled 9-inch third members. After that, all that’s left is deciding on your gear ratio!

The path to a robust and dependable 9-inch Ford center section for your street/strip ride begins with our aluminum 9-inch case as the foundation. The rest is up to your specific needs, but rest assured whatever you need to finish assembling your custom 9-inch 3rd member, we have it on the shelf ready to ship!