[urq] I've got the 'blues' (shock mounts)

[Maurits Jonkergouw]

IIRC there used to be two different quality shock mounts for FWD and 
quattro cars, but today, the dealer only lists (the blue) P/N 857 412 
323 B for all models, incl. the Sport quattro! I don't have the old ETKA
 around so I can't verify the P/N difference, but I'm pretty sure there 
was in the past (blue vs green?).

So what is the durability/quality of this 'blue' part and wasn't the 'heavy duty' not green of colour? 
I ask because in 2009 I fitted the above P/N (blue) ones and the only lasted 30K km...


What are the alternatives? The originals are dirt cheap (9 euro each) so that's not the issue here.

Thanks guys!

Regards,
Maurits

1986 quattro GV