just wondering if anyone could shed some light. had a vibration in pick up. took to garage to get all joints checked underneath, mechanic said they were fine, vibration persisted so took the prop shaft off, vibration disappeared , mechanic put propshaft back on , vibration worse and seems to stop at about 50mph. mechanic reckons nothing wrong with propshaft. can anyone shed amy light please? as its doing my head in. thanks a lot..... or should i be looking for a new mechanic