I am about to purchase studs, gaskets, oil cooler, and coolant filter for my 05 PS. I have did some research and so far looks like Xtreme Diesel probably has cheapest kit to do it all... I am sure I could look and browse around and by a piece here and there and save a few pennies but I would rather buy all together one place. If anyway has a idea of a better place or kit please let me know.... Thanks in advance.