Welcome! Looks like a nice truck. Being a former fire truck, I assume the mileage is quite low?
At least some of your questions appear to be general truck type questions, and not specific to fire trucks. I'd recommend dropping down one forum and posting in the regular Big Bolt forum. More people visit that one and you're more likely to get the answers you need.
Be sure to tell us more about your truck.


Rich
1947 Loadmaster
1947 Chev. Loadmaster
1959 Chev. Viking 40

Life is short--eat dessert first!