Progress Tech Front and Rear End Link Set.This kit replaces the OEM Corvette end links with Teflon-lined all-metal AURORA spherical bearing assemblies. Includes our specific high-angle machined spacers and .50" socket-head fasteners. The AURORA bearings are excellent quality, and made in the USA. Complete with all necessary hardware. These spherical end links are for track and autocross applications that see higher suspension forces higher loads from larger sway bars. These are fully adjustable for length, so the sway bars can be neutralized for corner weighting and chassis tuning. May require minor drilling to open 12mm holes to .50" diameter.