UMI Performance 78-88 G-Body S10 Tubular Front Upper A-Arms Adjustable No Ball Joint - 3056-B

Note: Upper a-arm must be used with tall spindles using standard height ball joints or tall ball joints on a standard height spindle. They are not designed to work with standard height ball joints on standard height spindles. In most cases shims are not needed. Shims may still be required on some applications.
Installation Instructions