[urq] 92-94 S4/S6/V8 rear Calipers

[CARDCONSYS at aol.com]

        I have acquired a set of s4/S6/V8 rear Girling calipers to install on 
my 83 UrQ. Can anyone please tell me how the cylinders should be retracted, 
for handbrake adjustment, as there are not the usual VW/Audi large hex key 
recesses but only a pair of triangular 'notches' diametrically opposed on the 
circumference of the cylinders? Is there a recommended VW/Audi/Girling tool or do 
I need to make my own?
       Martin Dapot