I would do the dorman sway bar first, you can save a little money by buying them online from advance auto parts, and picking them up in the store. The front is VERY heavy on these cars, and the stock springs are very soft, so the sway bay is a huge help. If you have stock lower control arms and 170000 miles, I would change them as soon as you get a chance, but the sway bar would be the main concern. The sway bars acts like a Spring that connects both sides of the front end together, to distribute the weight evenly when cornering or hitting bumps, without it you will almost definitely destroy your struts and springs in the front in a very short amount of time.
