I took my truck in for air conditioning repair.Upon removing an air line and now cant get one.Ive been told it was to be overnight shipping.It has been 7 days and still no part without the part I have no air. I have had to turn down 9500 dollars of work .I feel like Kenworth should reimburse me for my lost wages. User's recommendation: Make sure your parts are there before you let them work on your truck.