The Stovebolt has been great help restoring my truck. Just yesterday while reinstalling the fresh air heater I needed some assistance. I have a fresh air heater in my truck and the core was leaking. Pulled out the heater and took the core to a local shop. Core needed to be replaced. After reading numerous posts, I was not sure if the heater core could be rebuilt or replaced. The shop said no problem and ordered a new heater core. Picked it up yesterday. I installed the heater and then could not figure out the correct hose routing. Searching previous posts solved the problem. Found a diagram in a previous post showing the hose routing. Winter is coming. Again, thanks for the Stovebolt site.