y5mgisi
1 ton status
There is too main points to the creeper breather. One is for dudes with ultra flexy suspension dont have to have a breather hose that can stand that much travel, and the other reason as Colby said is to seal off the diff entirely. Nothing in, nothing out. It still allows the diff to breath as the it expands like a balloon and then when the diff cools down again, it returns to its normal size. ITs not for everybody. But handy for the people who can use it. I know trailgear sells them.









Hell, the interior panel is still off the truck, and the soccer ball is still in there! 
I doubt it since the engine doesn't seem to have been rebuilt.