Kodiaq jittery shaky ride at stable speed 50-80 km/h

Have the centre bearing on the propshaft checked.  I had an 'Edition' of similar vintage and that would start vibrating at just under 70mph and stop at about 78mph.  Made it very difficult to get anywhere quickly but comply with the law.  Ended up just sitting at about 66mph and all was fine.  Had the car on a ramp and there was definite 'play' in the bearing!  Subsequently changed the car so perhaps you've got it now (lol)!

Mike