Mercedes Benz R230 front lower adjustable caster arm. This lower arm will fit both diesel and gasoline models SL500, SL550, SL55, SL63 SL65 AMGs.
The arm is fabricate here locally and it made of cold bend steel welded on steel pipe with Energy Suspension Polyurethane bushings at one end and a ball joint with custom cut sleeves for the adjustable end.
The lower control arm helps with adjusting the caster alignment of the front wheel, pushing the front to be straight instead of angled in or out. It will also help in pulling the lower wheel in, which will also align the camber for the front.