Okay, first let me start by saying that I was able to determine that the hose hanging is the front differential hose, and if there was not a problem with the hose I could just hang the hose up high. However, upon inspection of the hose it has a pretty significant gash in the hose. I tried to find the part online, but not able to. Second, I don't know if I need to do anything other than replace the hose once I find the part. Any help would be beneficial. 2010 Ram 3500 Laramie Mega Cab 4X4.

 

Its just hose. All it does is vent the differential housing. I used trans line of the appropriate size from my local parts store. The vent cap is a bit trickier, but, I think you can still get them from the dealer. Local parts store may have them in their "Help" section as well.