non of my farm trucks or full sized vans have baffles
they are mostly all 50s, 60s, 70s vehicles
I've spent time working on most of these gas tanks growing up on the family farm
glueing tanks, prepin' other for welding or brazing, or simply cleaning them out from dirt and rust, etc...
if you drive on a steep hill in the field the wrong way you will see gas shoot out the fill spouts
some have only one tiny baffle to help mitigate this spillage from the slosh action, but nothing across the whole tank or in the way of a gallon of rocks in the tank to clean it out.
-s
