I am about to go mad trying to find a front end noise. It sounds like a golf ball in a cardboard box when running over bumps or cracks in a road. Left side. Applying brakes doesn’t change anything. Steering changes no difference. Everything is new up front, bushings, ball joints, steering Box, intermediate shaft, the works. This started after I had a so called mechanic run new parts in the wiper system. Stalk, turn signal switch, board and motor. It acts like a loose shock but——they aren’t loose. Nothing appears to be loose anywhere else. . It’s running me nuts. 1989 GMC 4WD Suburban.