Shock Pad, Body to Frame, Rear, 10mm Thick, 1956-77 Beetle, Super Beetle, Ghia, and THING, These sit between the pan and body, and dampen road vibration. Typically there are 2 thicknesses used, 10mm and 17mm, these are the 17mm. Put the thin ones on all 4s, and IF there is a gap at one of the locations (typically the rear one in the rear wheel well), swap them out for the thicker ones, then bolt it down