I needed to replace my radiator hose. So I went down to cutter dodge parts department and purchased my hose. The reason I went there is because they have the pressure cap installed on the radiator hose. They checked my vin #, hose #'sand said that is was a correct match. I then tried to install it. It fricken came up short by 4inchs how could that be. Everything on my truck is stock. Let me know (dodge dakota QUAD cab SLT v6 3.9L 2001)