When I stopped today, there was a hose dragging on the ground under the front of the truck. It is an 06 2500 4X4 sport with electronic 4 wheel drive. The hose comes off the back side of the front differential and I'm not sure where it goes.

 

Is it maybe your ventilation hose for the dif?

 

That's exactly what it is, this has been discussed about the rear as well. Just zip tie it somewhere up high where it won't get water in it.

 

Great thanks, thought something was broken

 

Here was the location just to be sure.

 

Yea, thats it. Just zip tie it up and don't get it so tight that your pinch off the hose.

 

Thanks guys, this forum is great.

 

There is a clip for it on the driver side frame rail. If its missing (most likely) then you can zip tie the vent to the frame like shiloh said.

 

tie it up as high as possible

 

Mine comes up by the battery.