Ridetech 90003041 55-70 CHEVY CAR TALL UPPER BALL JOINTRidetech 90003041 55 70 CHEVY CAR TALL UPPER BALL JOINT Most OEM front suspension geometry, in addition to being designed over 50 years ago, induced positive camber when cornering (loaded tire leans away from the turn). This is a huge compromise in cornering performance and feel. By installing 1 2 taller set of ball joints, we reposition the control arms to correct this condition and create a much more stable and enjoyable driving and cornering