Amsoil severe gear 75w140 GL5 fluid in a 1 quart pack (946ml).

This is our preferred oil for most extreme-use dog-shift and sequential transmissions, as well as competition use differentials with limited-slip differentials.

Examples are PPG dog shift gear boxes and sequential transmissions; as well as most hypoid differentials used in competition or extreme shock loading environments (doing skids in the next street over).