The grease that comes installed in the Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased # AKHD-545-35-K that you referenced is a Lithium based grease. When it's time to re-grease them we recommend the LMX red grease part # L11390 which is waterproof and the heavy duty. view full answer...