Dodge: 2001 5.9 Dodge Ram Waterpump Replacement, crankshaft seal, pullys

Question
Hello Ram Man,
You have helped me out before so here goes again.  I have developed a small oil leak in the front of my 360, which I belive is the timing gear cover crankshaft seal.  Question one, can I replace that seal without dismantling the whole front of my engine or do I need to remove the timing gear cover?  Question two.  If I need to remove the timing gear cover I want to also change out the water pump, bypass hose, and thermostat while I am in there.  I know there are two types of water pump pullys on these engines, A bolt on type and a press on type.  I think mine is a press on type.  What is the best way to get it off and back on again?  What type of puller and what area of the pully do I attach the jaws of the puller without destroying the pulley?  Any advice will be most appreciated, thank you for your time and have a great day..
Barry...  

Answer
Barry,
You will have to remove the cover to replace the gasket.I know it's a lot of work but it will have to come apart to do it.You might also want to consider replacing the timing chain also depending on the miles.If you buy a water pump from an Auto Zone or Oreillys or someplace they will usually press the pulley back on for you.They also sell the pullers for this also,but it is a lot easier to let them press it on for you.These pulleys will bend if the puller is not lined up straight.