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Old 03-21-2017, 03:23 PM   #17
ryanv70c10
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Join Date: Feb 2016
Location: San Mateo
Posts: 175
Re: Stress relief coils in brake lines?

Quote:
Originally Posted by Keith Seymore View Post
It's because there is relative motion between the cab and frame during use.

The cab is mounted on the body mounts with the master cylinder hard mounted to the cab; the brake lines are hard mounted to the chassis. The cab will move between a quarter and a half inch due to jounce or twist.

Something's gotta give.

No relative motion between the wheel cylinders and the axle tube, which is why the brake lines can be hard mounted to the tubes (the suspension travel is taken up in the center with the rubber hose).

K

Exactly and the only thing that I would like to add that is every time you hit the brakes, the booster and master will move a bit as well. I am used to unibody cars so I always put coils right below the master
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