How to Buy Junkyard Axles
In 1985 Ford began offering its own axle (built by Sterling) in the form of a full-floating 10.25-inch ring gear axle with 35-spline 1.50-inch shafts. When Ford redesigned the Super Duty in 1999 it increased the ring gear diameter of this axle to 10.50 inches. Most people think that 4.56s are the lowest gears you can run in these axles, but 7.17s are available under the Ford PN E5TW4209FA. If you are thinking about using one of these for your next project, get the full-floating axle, as there is also a C-clip version of the 10.25-inch that was used in some light 3/4-ton trucks. This photo shows Ford’s new 9.75-inch axle that it uses in V-8 F-150s and Expeditions. These axles come with 34-spline shafts and have been used since 1997. View Related Article
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