As some of you may have read a few days ago, I just bled the newly installed brakes on my 14bff. But I found lots of rusty fluid everywhere. Even the MC has a layer of rusty slime on the fluid reservoirs. I can't imagine how bad the arteriosclerosis on my brake lines is. I took my daily driver Toyota to have all it's brake fluid sucked out with a vacuum machine, but I don't think this machine has the guts to remove all the rust in the Blazer, so I think it would be better if I simply replaced all the lines. Has anyone replaced all the metal lines? Is it a pain in the butt? Any problems? Do I need to drop the tranny and/or transfer case? What about bleeding afterwards? Does all the air come out? Any sugestions welcome.