Steven Timothy Dexter

US Patent:

44310730, Feb 14, 1984

Filed:

Dec 3, 1981

Appl. No.:

6/327300

Inventors:

Jay J. Nagao - Lafayette IN
Steven T. Dexter - Lafayette IN

Assignee:

Fairfield Manufacturing Co., Inc. - Lafayette IN

International Classification:

B62D 1104

US Classification:

180 648

Abstract:

A ground vehicle final drive system includes a hydraulic motor powered by an engine driven pump, and a planetary gear final drive unit mounted between the frame of the vehicle and the wheel hub. A two-speed gear box is mechanically coupled between the hydraulic motor and the final drive unit and includes a remotely operable hydraulic shifter which can shift the two-speed gear box between two gear ratios by the use of a coupling that is splined to the output shaft and slides between an annular recess in one output gear and onto a spline connection on the other output gear.