I take my 02 325 trail boss for long tours with SxS and 4x4s (honda 450s/500s, 650 arctic cats etc) and can go on any trails they do but when on fire roads splashing in deep water my belt slips a lot…

I’ve put a new gasket around the belt cover but what else can I do?
..does snorkeling the vent make a difference because I do notice a lot of water splashes up around it…