Ford 9-inch axle
The Ford 9 inch rear axle is known as one of the most popular axles in automotive history. Ford ended its production in 1986 when it was replaced by the Ford 8.8 inch axle. However, aftermarket companies still produce this axle. The Ford 9 inch is a semi-floating, drop-out axle. It had a GAWR up to 3600 lbs.
One of the features which distinguishes this axle from other high-performance or heavy-duty domestic solid axles is that unlike other axle designs, access to the differential gears is not through the rear center cover; rather, in the Ford 9 inch, the rear cover is welded to the axle housing, and access to internals is obtained by removing the center cover on the pinion (front) side of the axle through which the driveshaft yoke connects, with the differential assembly coming out of the axle as a unit attached to the cover.,,[1][2][3] Although this requires disconnecting the driveshaft to access the internal gearset, it offers the advantage of being able to disassemble and reassemble the differential gears and adjust clearances conveniently on the benchtop, rather than with the restricted access of working within the axle housing under the car.
General Specifications
- Ring gear measures 9"
- Axle shaft spline count: 28 or 31 Spline
Common Applications[4]
- 1957-1986 Ford F-100 & F-150
- 1957-1970 Ford Fairlane
- 1958-1971 Ford Thunderbird
- 1965-1973 Ford Mustang
- 1966-1983 Ford Bronco
- 1967-1984 Ford Falcon (Australia)
- 1968-1976 Ford Torino
- 1969-1970 1/2 Ford Falcon (North America)
See also
References
- ^ ford-9-inch-diagram.jpg
- ^ Ford 9Inch Axle Height
- ^ Introduction
- ^ Incomplete list. Common applications only.
- Turner, Steve (1999), "How to Tune and Modify Your Ford 5.0 Liter Mustang, 1979-95", books.google.co.uk, ISBN 978-0-7603-0568-3, retrieved 22 August 2011,
Ford's 9-inch rear end is so durable it's a wonder Ford stopped making it
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