Update: I finally got around to this "Project" and removed the bed. I can't find any VIN number on the frame. The fuel filter us up under the back drivers side of the cab. So trying to get a look on top of the frame at this location will require cab removal or some tricky cleaning and mirror work LOL?
Now on the drivers side of the frame under the door there is a tag with XN and then to the right of the tag is a stamped number XN 1 29 91 or it may be a XN 4 29 91 but I belived it's a 1. Does this mean anything?
I have way too many projects and very little time so I'll be selling this project and hopefully someone else can give this truck the attention it really needs.