I extended the axle breather hoses last night for deep water/mud. One of the easiest upgrades yet. I used 5/16 fuel line, and two 3/8" hose mender kits. I spliced and extended the front to the top of the firewall behind the brake booster. In the rear I made a whole new line running through the cross member, into the driver side taillight cavity. I feel much more comfortable now having these mounted out of harms way.