Do I need a puller to remove any of the pully's (including the crankshaft pully)? In my manual, it states that I have to remove the coolant pump pully, and drive belt. By what I can see, the coolant pump is driven by the back side of the Timing Belt, and NOT the drive belt.... So does it still have to be removed? I do have all the parts I need: New Water Pump (w/ gasket), Timing Belt, Timing Belt Tensioner... Any thing else I need?