2005 Tahoe Q4SF weighs about 2500 empty w/out trailer. Boat came w/ a single axle (w/brakes) and towmaster f6514ST load "C" bias-ply tires rated at 1760lbs 50lbs. I suspect that I am w/in 200 lbs. of the max weight load.<br />I would like to purchase three chrome wheels and tires to increase my weight limts and gain some additional ground clearance.<br /><br />There is about 1" of upward clearance to the fenders, and there are rub marks w/ the factory size tires. The fenders do not look to be adjustable, but perhaps I could replace the shackles or flip the axle for more clearance.<br /><br />Any recommendation...