The brake line fittings (the ones on the hard lines that screw into the flex lines) are made of brass, and unbelievably overtorqued from factory. Even if you use the proper flare wrench (A 6 point wrench with one of the sides removed slightly, so as to get almost 6 points of contact around such things are brake lines), the brass fittings have been known to seize in the calipers up front, and to the stock flex lines in the rear on the trailing arm from overtorquing from factory. If that occurs, you'll need to cut the hard line as close to the flex line as possible, go out and buy proper brake line fittings, and a double flare brake flare tool, in order to have a working brake system again. After cutting the seized end off, slide on the new fitting, flare the end of the hard line, and you're good to go. What was supposed to be a 2 hour job ended up being a week job. I had to find brake line fittings (thank my lucky stars for UAP), which took days, and re-do basically every hard line to soft line connection.
Well, I can't really say what would be a good price where you are. I've noticed many Americans pay WAY more than us Canadians for example.
As for the warping of rotors, are the lug bolts being torqued with a torque wrench? And are the mating surfaces of the rotor and rim being cleaned when the wheels are mounted?
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