Speedway Ford 9 Inch Bolt-In Rear End Axle for 1979-93 Mustang
Ford 9", Rear Position, Semi-Floating Axle Type, 9 Inch Ring Gear Size, 31 Axle Splines
Build Your KitYou're almost there! This kit has an option or two for you to select. Let us know which options you want for your new kit.
These bolt-in rear axle packages are designed to replace the original '79-'93 Mustang rearend housing and are compatible with the stock trailing arm rear suspension found in your Fox body Mustang. The major advantages gained by upgrading to a Ford 9" axle include a) greatly increased strength (reliability), b) the variability of the housing to accept almost any gear ratio from 2.47:1 to 6.14:1, c) a drop-out third member for ease of service, and d) steel axle retainers keep the axle/wheel in place in the event of axle failure. Here are the features you'll find in our fabricated Ford 9 Inch axle kits:
- New stamped steel housing center piece
- New billet steel housing ends with oil seal surface ("Big New Ford" Torino-style)
- 3" O.D. DOM 3/16" wall axle tubes
- 31-spline axles w/ bearings, studs & retainers
- 1/2"-20 wheel studs, 2" long
- 5 x 4-1/2" wheel bolt pattern
- Jig welded suspension brackets for stock style suspension
- Built to stock width
Add third member and brake kit of your choice (both sold separately) to complete your installation.
- Rearend Housing 3rd Member Carrier Studs are not included but available as # 919-0915 as needed
What's In The Kit
79-93 Fox Body 9" Housing OnlyPart # 99047993.1Qty x 1
79-93 Fox Body 9" Axles OnlyPart # 99047993.2Qty x 1
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Q & A
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Speedway Motors employees are committed to helping customers, as well as working on their own projects during down time. Follow along as our employee, Zach, rebuilds a 10 Bolt.