Any wheel bearing grease that has a "DB" rating is far superior to the original grease that was specified for stovebolt trucks, both in load carrying capacity and temperature tolerance. "DB" stands for Disc Brake, and discs and the bearings associated with their hubs operate at extreme temperatures and loads that drum brakes never approach, even under max load weights and hard braking.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!