Ford and Mazda share a 4 and 5 speed front wheel drive transmission together. Ford calls the 4 speed a 4F27E while Mazda refers to it as an FN4A-EL. The 5 speed version of this transmission is called by Ford the FNR5 and Mazda the FS5A-EL.

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2003-2011 Ford Ranger and 2003-2010 Mazda B-2300 with the 2.3L 4 cylinder interference designed engines and 4R44/5R55 series transmission may incur engine damage after transmission R&R.

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