shame we don't do the ftrucks here they are awsome beasts the chev 350 duely is the bigest truck we do but they go very well. we have just put a lpg performance conversion on our work truck and it fooking flys. i think due to engineering and compliance the conversions are better over here due to being regulaterd and not back street if that makes any sence. the test's that are done are fully certified. when we do a new modle we strip a new truck to it's chassie then the body go's for seatbelt testing and they rip the fook out of the body to see how much it takes to destroy it. the seats are destruction tested along with a host of other stuff to. we are moving to plastic dash's and away from glassfiber to improve quality and get that factory look fit and feal and this is a real pain haveing to remake all the molds due to the injection molding process and shrink rate. best of luck finding a decent convertor in the uk