Supercrazy BMW E36 3 Series Hydraulic Ball Joint Installation Removal Tool Kit Removal and installation press-fit control arm ball joints on BMW 3 Series E36 vehicles. Use in-situ, there is no requirement to remove the control arm from the vehicle. Includes: Hydraulic ball joint press frame (OEM 31 1 441) 2 X Removal tools (OEM 31 1 445/6) 2 x Installation tools (OEM 31 1 447/8)