I have a 1996 Dakota club cab. At speeds 60 mph and above and running in winds it develops a high pitched howl at the door windows, also does this when passing or meeting a large truck. When it is making this noise you can feel a very rapid vibration when touching the window. Even lowering the window a little does not stop the noise, the window must be lowered by half to three quarters of an inch or more to stop the noise, and by then you have normal wind noise for an open window. All weather stripping and seals appear intact and in good condition. Thanks for any help.