I have a 2002 Dodge Ram quad cab 1500 SLT. It has 83000 minles now. I have been told my power steering hoses are leaking (something is) and need to be replaced. Dealership wants to charge 250 for parts and labor...is this something I can do myself for less...are they being hoenst? The have also told me that my thermostat and gasket needs place and transmission pan gasket needs replaced. Are these things that I can do myself as well?