See the below community video on axle rebuilds (thank you to Michael Schneider).
PLEASE NOTE, only Redline CV-2 CV grease should be used when rebuilding your CV's. This grease is designed to take the temperature associated with racing. Most other graphite / molly loaded CV greases are not suitable.
CV Joint Clocking
Correct clocking of the inner race is the most common mistake when rebuilding axles.
The rule: The inner race has one flat side and one indented side. The indented side faces inboard (toward the center of the axle).
Getting this wrong will cause premature CV failure. If in doubt, disassemble and recheck before sealing.
Seal the mating surfaces with high-temp RTV. Do not over-apply — a thin bead is sufficient.