you're towing capacity (for a 2001 Forester) is 2000 lbs. You're perfectly fine. At the very WORST your 6.0 and trailer weigh 1100 pounds...that is if you've added a bunch of steel and extended your trailer tongue 8' I weighed mine when my 6.0 was on it and my trailer is a rediculously large portion of that 1100 lb equation.