Well, I finally took 1 hour of my time and assemble my first cv half-shaft with new boots made from thermoplastic. Thermoplastic is a blend from plastic and rubber that can withstand higher and colder temperature. It also resists better to puncture and tear.       The rockford thermoplastic boots are made from a patented blend called santoprene made by monsanto company : http://en.wikipedia.org/wiki/Santoprene   My adventure started when one of my boot teared. Went