Vin tag on my Superduty

[fordon46s]

Got a 02 f350 x-cab 4x4 frame. Does anyone know where the vin tag on this frame would be? Cant seem to find it and before I put this frame underneath my truck I want to make sure it isnt stolen.

 

[94f450sd]

there isnt a tag on the frame.if the VIN is on the frame it will be stamped on it somewhere.not sure if ford puts the vin on the frame or not but try looking on the top of the rails under the bedd or up front somewhere around where the engine would be bolted