Im a more of a hands off conservative approach guy meaning like it or not you will have to remove the water-pump so as to replace the the o-ring gasket while adjusting the timimg belt any way and you HAVE to remove both the pulley and tensiioner any way just to get the back plastic timing cover to spring out to remove the water pump anyway so you might as well as replace those components anyway.. It will take a saturday with parts in hand. The book says 2 hrs but for us less confident people that dont turn wrenches for a living then it takes longer. Any questions then write back. Get your kit from Amazon.com My mechancis wanted to charge me $785 and the dealership wanted $1,200. For what??? 2 hrs work? For a $100 to $200 in parts? And 2 hrs labor? The GM mechanic does it at job-rate at $14 an hr at $28 for his 2 hrs???? Sounds crazy I know but thats the way it it really is. Any ??? ask me. Ive done 12 of these. Come to Indianapolis and I will do it for a $100 with your help. NO! Im not ASE certified but I am a retired Army helicopter mechanic.