Upper and Lower Control Arms 1958-64 Impala. Our tubular control arms come with everything you need to bolt on and go. They are black powder coated for a nice looking and long lasting finish. The upper control arms come with bushings, ball joints, and shafts. The lower control arms come with bushings and ball joints. The upper control arms are adjustable to either factory spec or 4 degree of positive caster. Add that cool look to your car and lower your curb weight tubular control arms.