Abstract: An apparatus for securing a first joint member to a second joint member in a universal-joint comprising at least one pin for insertion along a Y axis, at least one pin for insertion along an X axis, a coupler between the joint members configured to receive these pins, and a security pin configured to traverse the coupler along a Z axis when each of these pins are within the coupler, such that the security pin penetrates at least a partial hole in each of these pins. The at least one pin for insertion along the Y axis may be a main pin having two recesses. The at least one pin for insertion along the X axis may be two bracket pins each having a bracket extension. Grease may be injected into a center of a joint member through a fitting. Retaining rings may shrink the boot to a pre-defined limit.

Abstract: An apparatus for securing a first joint member to a second joint member in a universal-joint comprising at least one pin for insertion along a Y axis, at least one pin for insertion along an X axis, a coupler between the joint members configured to receive these pins, and a security pin configured to traverse the coupler along a Z axis when each of these pins are within the coupler, such that the security pin penetrates at least a partial hole in each of these pins. The at least one pin for insertion along the Y axis may be a main pin having two recesses. The at least one pin for insertion along the X axis may be two bracket pins each having a bracket extension. Grease may be injected into a center of a joint member through a fitting. Retaining rings may shrink the boot to a pre-defined limit.

Abstract: A steering system for vehicles operative in a number of modes, requiring a narrow wheelbase for travelling on highways, and a wide wheelbase for performing tasks, typically agricultural. The steering system enables each of the wheels connected with such a vehicle to be steered independently, thus enabling movement in any direction, and full turns, to include turning about its geometrical center.Additional computerized systems are provided for the regulation of steering and for the regulation of a power transfer system conventionally used to transfer power to agricultural machinery.