Abstract: A method and apparatus for ready replacement of a noncreeper subassembly in a tractor transmission with a creeper subassembly. The method includes subassembly removal and replacement through a window. Removal is by opening the window, reaching in to move, along a subassembly main shaft, a collar which joins the main shaft to a shuttle shaft and in so doing opening a void between the shafts, and then using the void to advantage to manipulate the subassembly out the window. Replacement reverses the same steps. The collar on the creeper subassembly has means for seating a bearing.

Abstract: A method and apparatus for ready replacement of a noncreeper subassembly in a tractor transmission with a creeper subassembly. The method includes subassembly removal and replacement through a window. Removal is by opening the window, reaching in to move, along a subassembly main shaft, a collar which joins the main shaft to a shuttle shaft and in so doing opening a void between the shafts, and then using the void to advantage to manipulate the subassembly out the window. Replacement reverses the same steps. The collar on the creeper subassembly has means for seating a bearing.

Abstract: An actuator ball movement coordinator and cam member for a torque responsive hub clutch of the ball and cam type serves to assure coordinated movement of a plurality of actuator balls and also cams the balls into positions which cause actuation of the clutch.

Abstract: A clutch interposed between a hub mounted for rotation on a spindle and a selectively driveable axle which extends longitudinally through the spindle serves to engage the hub to the axle when the clutch is subjected to torque caused by placement of the axle in a dynamic or driving axle mode. When the axle is in a passive or non-driving axle mode the clutch serves to disengage the hub from the axle whereby the hub is free-wheeling on the spindle.