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I'm working on modifying a steel A arm for the late model sway bar using late model drop links so I got an old Aluminum arm. On my not precise scale, the aluminum arm with ball joint and no bushings was just at 5 lbs, the steel arm with ball joint and bushings weighed 6lb 4 oz. The aluminum looks really neat and feels light, but that is a lot of money for 2.5 lbs of unsprung weight. Finding lighter tires next time around would get a much greater unsprung weight reduction. Just my opinion.
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