JCK wrote:
Had a 2015 Max tow GMC 1500 If memory serves me wright it had 4300 lb. rear axle and around 1800 payload . I think the standard rear axle is 3850 lbs. I had a 28 foot Keystone bullet that was right around 6500 lbs. Truck handled it fine but you could never drive with one hand . Trailer didn’t sway but truck was constantly moving around probably because it had 20 inch P rated tires . I don’t get it you buy max tow / max payload and they give you P rated tires shame on GM . Kept it two years and got a 2017 GMC 2500 HD problem solved
I had the same problem with my 2012 sierra, max tow package, even got the lt tires and upgraded the shocks , etc. Then bought a 2500. The difference was night and day. And the TT wasn't heavy. Could it tow, yes, was it a fun experience no.