It appears that it is really important to use the correct Grease for the tripod joints
Found numerous points about it. From the GKN website

Tripod Boots & Greases

The tripod grease is optimised for tripod lubrication. It has high scuffing resistance but does not contain any solid additives (which can reduce life by jamming the needle bearings).
The GKN MotorSport ball joint grease with its ultra high load carrying capacity and optimised viscosity is suitable for all fixed and plunging CV joints.
Advantages of greases especially developed for use with GKN CV and tripod joints:
Help reduce power losses
Increase durability
Offering low friction and wear properties
Wide thermal operating range

It seems moly is not what you want to have. Thanks for the heads up:thumbup: