well yeah thats a tongue weight of all what... 200 lbs? ive seen quite a few notched frame chevy duallys with bent frames from towing big boats.
If there done right they don't 'bend'
My '85 c30, 3+3, 5/7 on alcoas has seen 2K in the bed, and pulled a 12K 5'er, and its not bent.....but its not bagged (someday......)
praise the lowered

Dan'l