Garage Cabinets, Garage Storage, and Garage Organization

I have a Ford Mustang that I took in for a service check at a local garage . I asked him to check the right front hub for looseness . The car drove fine and no noises or vibrations. He ended up saying he thought I had bad rear U joints and took it upon himself to take the driveshaft apart. He jumbled the parts without marking them and also was unable to obtain new U joints due to the local auto parts place clerks being too lazy. I obtained the U joints from Napa and he reassembled the driveshaft. The car now has a low droning sound and vibration that picks up at 60 mph and gets worse as the car goes faster. I took the car to another shop and they pulled the driveshaft and balanced it . The noise and vibration is still there. The car is now at the ford dealership and they are stumped too at this point. Any ideas or suggestions?

Hi Razon, you should always scribe mark a driveshaft/u joint assembly before disassembling it. If you don't you get what you got. The first mechanic is a moron. Don't go back to him. But what you should do is present him with the bill for a new driveshaft because the best solution to get rid of the drone is to replace the entire assembly.