The military has assigned a 20-yr life span for the HEMTT series of trucks. We're only seeing the oldest of the old HEMTTs start coming out of surplus. Most of the worn out ones get sent to Oshkosh to be rebuilt, anyways, and the ones I have seen the slip through the cracks and get auctioned off through GL are very beat up. They are sorta street legal, sorta not, depends on your state.