Eric posted some pics of a modified 1955 Willys fire truck to Facebook the other day. Apparently, the truck was originally stationed at the Chiricahua National Monument, then at the Fort Bowie National Monument, before arriving in 2016 at the Petrified Forest National Park.
Somehow, I have never been to any one of these three national parks. As a boy, we’d go jeeping at the Beverly Sand Dunes and finding petrified wood was no big deal, so I’ve never seen a reason to stop at the Petrified Forest NP. There other two are definitely worth a stop on our next Arizona trip; When will that be? Maybe spring of 2022?.
My guess is the jeep pictured in this National Park sign is a Valley Fire modified truck, while, given the low rear bed, I think the white fire truck was likely originally modified by General Fire into a model they called “The General Commando”. According to the CJ-3B page, the General Commando came in both open top (similar to a Personnel Carrier) and a closed top, more typical of a standard truck.
I could imagine that for the forest service’s use, remove the interior portion of the fire truck bed, then covering it was a practical way to get more utility out of the truck.