I've been seeing drops of coolant in my garage lately, after some investgating, it appears that the water pump is leaking near the pulley. My 2003 Tahoe has 98k miles. The last time I changed a water pump was over 15 years ago. Can anyone please tell me if there are any special tools required for this job?On any hints to make the job easier? I contacted my dealer & they wanted $615.00 to do the work, I'm hoping to save some $$$ by doing it myself, it looks pretty straight forward. Thanks in advance for your replies,

-Kim