For Golf 1: 3 doors without sunroof.
To adjust the differential bearings game. For 020 gearbox.
For Beetle, Type 3, Karmann, Combi T1. For Golf 1, Golf 1 Cabriolet, Golf 2, Golf 3, Jetta 1, Jetta 2, Vento, Scirocco 1 and 2, Polo 1,2 and 2F with 085 gearbox.