I am tracing wires to see how things function
1. There are some disconnected wires on the speedo head(attached to the transfer case). Not sure what it's for?
2. The air dryer heater wires on the air dryer assembly. Where does it get its power and when?
3. Transmission sensors/senders. What is what and where does it get power, etc?
4. I would like a exploded view of parts with NSN # on components as well, we convert these trucks into wildland fire trucks. Having all this info helps a lot when we refurbish a truck.
Thanks