Axle assembly with lubrication pump

An axle assembly comprising:

• a pair of axle half shafts;
• an axle housing having a center portion defining a sump portion;
• a first clutch assembly including a first half having a plurality of teeth and a second half having a plurality of teeth, wherein the plurality of teeth on the first half are selectively engaged with the plurality of teeth on the second half;
• a second clutch assembly disposed adjacent to the first clutch assembly, wherein the second clutch includes a drive gear and the drive gear is selectively engaged with the second half of the first clutch assembly, and wherein the first clutch assembly comprises a curvic clutch gear and the second clutch assembly comprises a friction clutch;
• and
• a lubrication pump drivingly coupled to the second clutch assembly.

An axle assembly comprising:

• a pair of axle half shafts;
• an axle housing having a center portion defining a sump portion;
• a first clutch assembly including a first half having a plurality of teeth and a second half having a plurality of teeth, wherein the plurality of teeth on the first half are selectively engaged with the plurality of teeth on the second half;
• a second clutch assembly disposed adjacent to the first clutch assembly, wherein the second clutch includes a drive gear and the drive gear is selectively engaged with the second half of the first clutch assembly;
• and
• a lubrication pump drivingly coupled to the second clutch assembly, wherein the second clutch assembly drivingly activates the lubrication pump when the plurality of teeth on the first half of the first clutch assembly are disengaged from the plurality of teeth on the second half of the first clutch assembly and when the second half of the first clutch assembly is engaged with at least a portion of the second clutch assembly.