Abstract: A universal joint assembly including a cruciform or like structured body having a plurality of spaced apart bores formed therein and a plurality of trunnion pins each rotationally mounted within different ones of the plurality of bores. A retaining assembly movably engages and retains an inner portion of the plurality of trunnion pins. Rotation of each of the trunnion pins relative to the body eliminates the need for any type of bearing assembly being interconnected or otherwise disposed between an outer end of the trunnion pins and interconnected yokes or like cooperative, exterior components conventionally associated with a universal joint assembly.

Abstract: A locking assembly for a differential of a motor vehicle, wherein corresponding drive axle shafts of the motor vehicle may be selectively positioned between a locked and an unlocked position by activation of a positioning assembly which is preferably, but not exclusively, a manual shifter mechanism. In the locked position, the differential locking assembly serves to interlock the corresponding axle shafts, such that the drive wheels associated therewith rotate in a synchronous manner, rather than relative to one another at different speeds. A locking gear assembly comprises a first locking gear, formed on one side gear of the differential and a second locking gear, formed on a locking member, wherein manipulation of the positioning assembly selectively positions the first and second locking gears into and out of intermeshing engagement with one another.