Fuel smell in cab

This has been ongoing for a long time. I was going to ask if anyone else has encountered this becasue I have no clue how its happeneing. Its usually strongest after a fill up, and it drives me nuts.

Please help me diagnose this one.

Thanks!
Phillip

fuel maybe leaking, check your fuel lines for cracks

remove your rear seat and remove the cover to the fuel pump. check and see if the gasket/seal is dry rotted.