iirc you need to use 2 sets of mole grips, use 1 set to close them a bit at a time and the other to hold the gap while u readjust the 1st set if that make sense [ bit difficult to explain without pics ] then slide the clip on when they are together
there is a how to with pics either on here clubgti
or mk1 owners club or try vwvortex
sorry mate but do you mean the swinging point? if so i believe they require pressing in