gjberche: I will be screamed at for saying this but over the years I have replace several and never taken anything loose but the rear. I have what is called a "chinese rope" or at least thats what everyone calls it. The seal rope fits in the end of it and the harder you pull the tighter it gets on the seal rope. I still have it in my box and if you want to use it I would send it to you. I lube up the rope seal fairly good and then with this chinese rope deal you can pull the daylights out of it.
Has anyone else used what I'm talking about?