i have a 1998 1500 chevy cheyenne 4x4. i live in the mountains and i can't keep front rotors on it. i tow a 19' 2005 north river,onthe trailer it's about 3500 lbs-with gear & people i'm about 5000lbs. thinking about 2006 toyota tundra 4x4 4door. pretty sure it'l tow it,but don't know bout the...