To do it right I post here again and hope for good support.. 
Why are there two different clutch foot levers? There is one for the PT Audi No. 443 721 315 and for the ABH there is 441 721 315.Where is the difference? There are also different overdead springs.Where is the difference? There is a 4A0 721 403 E overtotpoint spring then a 4A0 721 403 D white and still 4A0 721 403 G yellow.What do the colors mean? Does anyone know about this?
Thank you in advance...