The C-clip installation is the most difficult part to install, and even so, it's relatively easy. The cross pin is removed from the LockRight, which allows the two center drivers to come together. With the axleshaft pushed all the way inboard, the C-clip is dropped in between the clutch and driver and, hopefully, into the groove on the end of the axle (arrow) . Once engaged, the axle is pulled out to seat the C-clip in the recess of the LockRight. Check for a small amount of endplay and free rotation.