Amsoil came out with a new off road grease:

https://www.amsoil.com/StoreFront/gpor2.aspx?zo=515729

The specs look really impressive especially for our driveshafts.

 

Looks interesting. Doubt I'll switch though. I've been using Castrol Pyroplex Blue for many years, which is also made specifically for heavy equipment used off-road in wet dirty environments. I'm quite happy with it.

 

I may pick up a tube but I don't go through grease all that fast. If they had it at advanced auto maybe but amsoil stuff you need to order or hunt for.

 

I"ve been an Ams-oil user since 1976, and a dealer since 1990. I will proudly and confidently stand behind all their products. I've never encountered a problem with any of their stuff. I wont put the sales pitch on ya here though....but if you have trouble finding the product locally you can try this link.....
www.lubedealer.com/crsales/