Might be worth talking to, I think his name is Ron or Rod from Titan brakes in Qld. I know he brings them in and sells them, but I have had a number of conversations regarding other matters and he has been very honest in his answers, verified by other sources. Might qualify your questions for you and get the answers. There was a guy on LCOOL who fitted one on a heavy van and he was very happy with it. I tried searching for the topic but was unable to locate it.