Thanks. Everyone! I really don't want any dramas when trying to get the tank filled I think I will entertain removing the spare tire and making the entire tank visible / accessible.
i am not expecting the tank to be filed from under and around the rear diff, that's where the remote fill comes in. I found an example that shows the remote fill.
I am looking to mount a propane tank behind the rear differential, I plan on building a bash plate under it for protection. Do you guys think this would be a good location for the tank. I also will have a remote fill line ran to an accessible area.