If you're lifted you might have to, but not lifted you definately don't need to. I'm lifted and had to extend my vent line and reposition the ABS sensor wire and bracketry. My brake line is also stretched pretty tight under certain conditions, so I got a new line. Unfortunately, after the nightmare Schludwiller and I had installing his extended brake line, I'm afraid to actually do it!
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ChuckH
"Every morning when I wake up I know it's not going to get any better 'til I go back to sleep again!" Al Bundy