Well this is why News shows like 20/20 and others have WARNED people many times to stay away from Firestone,GoodYear and Sears stores...... They first hire Back yard Mechnics and train them THERE way of doing Biz.. (Make as BIG of Profit as you can for the Co!!) They showed many times where people would go in the the stores with something simple and people would walk out with a LARGE Bill.. Some even Sold goods that were NEVER NEEDED!!! Or did a little fixing for them selfs for you to THINK that something is wrong... Do a search and you will find what I am talking about.. JUst find a Good Local guy that has been doing it for years and has GOOD Ref's from friends and the BBB. You will find that he knows more and is very fair with the price.. BUT also remember They have to make a living too...His Snap-on tools are not cheap...