painting control arms

This is for davebarracuda67

SPOT WELD ??? That is a definite NO, never weld on it. If it spins check the taper and make sure its not wobbled out if it is replace the arm. If it just spinning because you are using a hand ratchet hit it with a impact wrench till it stops spinning then torque it to specs then tighten more to line up cotter pin hole never back it off to line up.