[Masteryota]

It may not help if you are fording a deep portion of water, but it has been mentioned on here before about taking the cover off the rear most portion of the cover, and drilling holes through it, and gluing or riveting some scotchbrite pad to the inside of the modded cover. I might go as far as using a bit of water proofer or air filter oil on the scotchbrite to repel water, but if you sink it that far, it probly won't help at all.