A universal transfer case for a vehicle having a casing with a primary drive axis and a secondary drive axis spaced apart and parallel to the primary axis. The casing includes a connector configured to permit coupling to a vehicle in a manner locating the secondary drive axis in one of a plurality of orientations in relation to the primary drive axis thereby allowing the transfer case to be used with front axle drives offset to the right or left of the primary powertrain axis. Interface connection locations may be provided in the casing which when machined allow openings in and/or connections to the casing to be optimally positioned based on the installation orientation.

A modular axle assembly includes a differential casing with an input axis and a drive axis oriented at a right angle thereto, first and second casing connectors disposed on opposite sides of the differential casing and aligned on the drive axis, each connector including a shaft coupling. An axle extension selectively connectable to one of the casing connectors to extend along the drive axis toward a distal end is provided, a shaft coupling being provided at the distal end. The input axis location in relation to opposing ends of the modular axle may be selectively alterable by connecting the axle extender to the first casing connector or the second casing connector to best suit a specific vehicle installation.