hi Donna, I think mine was stamped on the top of the frame rail by the
propane tank location on the street side (drivers side). It may have had a lot of
paint covering it so sandpaper will probably be required. I think mine was only about 6 digits long. Can you read any numbers stamped into the side plate (should be 4 sets of numbers, the
vin will be the top left
set. Maybe try doing a pencil rubbing with some
light paper to see if it shows up anything