thanks for the response. I have shaped brakelines in the past and have a couple tools for that purpose. I haven't flared any lines but have used compression fittings before. What is your experience and opinion on them? I like your suggestion of running the new lines next to the old ones. Like you said, I would have to run them where they wouldn't get damaged and attach them securely. I was first thinking I would have to remove old lines completely and run the new ones in the exact same place and that is where it seemed very difficult so I was really wondering was whether there was any proper, or easy, procedure for removing old lines from along the frame rail on the 97 blazer because I just couldn't see how to reach up there and disconnect and reconnect things; there just is not enough working room it seems. thanks again!!