Suspended drive axle and agricultural tractor with same

A four-wheel drive agricultural tractor comprising:

• a front portion having a front drive axle;
• a rear portion having a rear drive axle, the front and rear portions being joined to one another by an articulating joint and both the front and rear drive axle assembly having left and right wheel and tire assemblies;
• at least one of the front and rear drive axles having a central housing having left and right drive output members, left and right axle housings coupled to the central housing for vertical movement of the left and right axle housings relative to the central housing, left and right axle shafts rotatably carried by the left and right axle housings, a drive yoke at an outboard end of each drive output member, a driven yoke at in inboard end of each axle shaft, inboard and outboard journal members pivotally coupled to each of the drive and driven yokes respectively, a coupling yoke pivotally coupled to both the inboard and outboard journal members, the inboard and outboard journal members and the coupling yoke being positioned radially outward of the drive yoke and driven yoke wherein the drive yoke and driven yoke are axially adjacent one another, the wheel and tire assemblies of the drive axle assembly being mounted to the left and right axle shafts.