Abstract: A convertible single speed single reduction drive axle (200) convertible to a shiftable two speed planetary double reduction drive axle (10) is provided. The convertible drive axle (200) utilizes a locking gear (204) and locking gear pins (206) with the same components as found in a two speed double reduction axle (10) with the exception of several components such as the sliding clutch gear (94), idler pinion gears (84), high speed clutch plate (90), clutch plate dowel pins (92), idler pinion pins (88), shift fork (112) and thrust washer (126), which are not utilized.

Abstract: A removable reusable nut lock system (10) of the locking cap type for positively selectively removably retaining a standard nut (12) on the externally threaded end of a shaft (14) is provided. The lock nut assembly comprises an internally threaded bore (22) provided in the end of an externally threaded shaft having internal threads (24) of an opposite hand as the external threads (16) on the shaft. A locking cup member (26) is provided for slipping over the outer periphery of the nut for rotation therewith and the locking cup member is provided with a flange (32) having a plurality of ramp type ratchet teeth (38) on the outer periphery thereof. A locking cap member (28) is provided having an externally threaded stud (50) fixed thereto and a plurality of locking fingers (58, 60) extending radially outwardly and downwardly therefrom.