Yes definitely... my trailer is a few feet longer than yours, and I wouldn't want to pull it with anything less than my 7.4. It's been weighed on a grain scale (loaded for camping) at about 9200#. I'm surprised that you have 4:10 gears with the smallest V8, interesting combo! At least yours is a 2500 so you have the beefier brakes and suspension. And a lot of other upgrades/tuning obviously! I always tow in 3rd per my owner's manual, but I think that was a non-Vortec thing.