[Dystrakti0n]

Right after purchasing the coach a few years back, I had been storing the bus on a friend's property. Ground got a little soft when we went to pull out we got dug in, ended up having to be winched out by a heavy wrecker (thank you Good Sam roadside platinum) . I know there is a button for deflating the tag airbags for better traction, but is there a way to lock out the differential so that one side isn't just sitting there spinning? If so, how do I do that with the toggle gear selector?