my personal opinion is to stay out of the mud and water as much as possible, i used to do that stuff, till my rear axle bearings locked up and ruined my housing, cost me a couple hundred to fix it, all from a little thrill of doing a mudhole, mud will get into your bearings and bushings,thats like adding sand to the grease when you lube it, and power washing it just drives it in further, all bad news eventually