Stuck on the road... help please

[BIGRED]

My wife called to tell me that our 83 300SD stalled on the Freeway. I asked her to wait a few minutes and then try to start it. She said it was running rough then quit. We waited 10 minutes and it started a bit smoother.

I am thinking it is the filters, but input appreciated. As I wait for it to be towed to a gas station, I will need to get my tools and gather up the right parts to "try" and fix it.

Thanks in advance.
Don