As stated above, read your owners manual and do a little homework on what the weight ratings mean. If you're towing on the bumper, be sure you know the weight ratings of the bumper itself-stamped in.
How far will you pull the boat? If you're going literally 2 miles to the boat ramp at 35mph it almost doesn't matter. Does the trailer have surge brakes? (hopefully) Hydraulically actuated brakes built into the trailer are common on boats due to sinking in water- not cool for electrics. I tow long distances; on my heavy 2500 long wheelbase truck, I had a good platform without modification. On my 6 lug 2500, I have a shorter wheelbase, 1 less leaf in the springs, and larger diameter wheels all of which affect stability. So on this truck, I'm adding a set of Timbren overload springs; They do two things- first, they add spring capacity so you won't squat as much with the weight. Secondly and probably more importantly, they act as a sway bar would- if one side compresses, only that side gets spring added as load increases tending to keep everything more upright. In contrast to heavier springs, the Timbrens have no effect when unloaded; that is, if you roll, the Timbren on the light side doesn't push upwards as a spring pack does, and the effort applied increases with the compression of the loaded side.
Plus, easy to install and not ridiculous in price; when you're not loaded, they don't affect the ride at all because they don't touch anything.
The Timbren GMRCK25 SES is a rear suspension enhancement system for the MODEL_NAME made between YEAR1 and Year2. Shop now.
timbren.com