I tow our scout trailer with my stock KK. When I was doing some looking under the hood, can't see much difference between one with a tow package vs one without other then this little extra cooler (about 5x7) that looked like it was going to the powerstearing. Having a trans cooler standard is all i figured I needed. Our trailer tips the scale at 3400 and some change. I tow it inthe tow/haul mode and don't drive over 60. I've towed it about 5 times inthe past 2 years and each time from 20 to 150 miles. I just got my 60k service done and was told my fluid was like new and I still have 60% of my brakes left. Either I got one built on a tuesday or just lucky. I did pull a 6x12 cargo trailer (Uhaul) around for a few days with no issues. I have a classIII hitch (hidden hitch). Only thing I noticed was I wasn't getting great gas mileage

. Like I didn't see that coming. I think 3000 is the sweet spot for these rigs. 5000 is pushing it IMO.
Speaking of which, I did notice my tow/haul butten is depressed below where it normally goes and won't pop back up. It's not in tow/haul mode (according to the light or the way it shifts) but i just noticed it a couple days ago. Waiting for the weekend to pop off the cover and see what's up. Anyone have this issue before? Think the stealership did it when they installed my heated seats. Want to be sure before I go back guns ablazing.