Quote:
Originally Posted by kerry
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I think I figured out why the old one rusted out. The spring seat had caused a hole in the arm so water could get inside the arm and cause the rust.
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Yep that spring seat is the typical area for rust to start on those r107, w114, w115, w116, w123 and w126 rear control arms. I like to Por 15 the bare metal area the spring causes if I have the spring out to prevent that type of damage.