Thanks for this submission THEWOOD it is an interesting look at the guts of a truck. I hope this guy was anethesiazed before going under the knife! It appears that the snout of this gentle beast is under investigation, most likely for a cleansing and recirculation of fluids. Trucks do require regular check ups, just like us (and all other biological creatures!) and keeping sanitary and healthful is a sure fire way to guarantee a long and healthy truck life.