Hello everyone. First I must say this forum is very useful and fun. I have a 2002 Monterey 218LS (22', 3600 pounds). My trailer is a tandom Venture VBT-4000 with surge brakes. My tow vehicle is a 2003 Chevy Tahoe. When I hit the brakes at around 45 MPH I get a bad vibration. Does anyone know...