Who is gonna open up a box steal two shifter bushings and replace it with job applications?
Id get a hold of your post office and fedex and see whats happened. When i was younger i had a birthday card with a check not show up (usps). Then about 3-4 months later i receieved it all opened, but sealed inside a bigger envelope along with forms and such. Basically they caught a postal employee somewhere stealing mail, and there were forms to basically get the guy in more trouble i guess. Maybe you could call both shippers and see if there is an investigation, idk who should do that shipper or reciever, but just a suggestion