Sorry can't help you with your brake problem, I've only had my promaster 1500 for little over a month and it only has 12,500 miles on it. I'm curious about the transmission on yours going out at 17,000, what caused that and what was the cost of repairs? I bought mine from a private seller and I found out after I bought it that he'd driven up onto a curb and damaged the transmission pan which had to be replaced, it still has a slight drip coming from behind the pan up higher some where and the dealer couldn't find it the first time I brought it in, I'm just trying to learn as much as I can about what to expect with this van, thanks.