For the drive shaft joints, Bell Hammer Metal Grease is recommended. It maintains a strong lubricating film under high load and repeated torque changes, helping prevent wear while keeping movement smooth.
Remove as much old grease as possible before applying, and avoid overfilling to prevent pressure damage to the boots.
Note: For the mechanical LSD itself, do not use Bell Hammer additives. Use LSD-specific gear oil, since friction characteristics are essential for proper lock-up.