So I'm crawling around underneath the truck and I spot these two things that look to be mounted to the transfer case skid plate with vacuum hoses going to them. This is a plow truck and it looks like they will be adios' after the 1st pile of snow I drive through. Anyone know what they are and what they do? i need to relocate them. Thanks!

 

Yeah, they are vacuum hoses for the CAD on the front axle for when you shift the transfercase into 4 low or 4 high.