Re: axle vent tubes....vent caps?
I ran the rear up through the boot where the filler neck goes through the bottom of the tub. I used electrical tape and a rag for a filter.
The front I plumbed up to the air intake and use a rag and tape for a filter.
It would be better to use a real filter, but I was in a pinch so thatís what Iíve got. Seems to work fine.
On another note, everyone that runs through water and mud should check their gear oil and front knuckles regularly and change the oil/grease as needed. My front knuckles seem to stay full of water. I beak them down every one to two months and they always have a ton of water in them.