I've done the brake pads on my 98 GT before and had no problem, but I've been told that since my 2001 GT has ABS, I have to prevent the brake fluid from backing up into the master cylinder? I was given a tool from a friend to "crimp" the line, but when and where is this necessary to do and can i just avoid it all together and do the pads without worrying about this? Thanks for the help