Can anyone help with the following:

-Limited slip differential does not work. Right wheel spins without transfering power.
-Power window switches do not work when truck is first started (5-10 minutes).
-Power steering pump "whine" when turning.

Dealer has checked twice and cannot locate problems.

 

My 1993 f-150 has factory Limited-slip, You can tell when its working cause it "ticks". If its still on warrantee, I would take it back to the dealer, and have them either replace it or find someone to fix it.