I have a 2wd 2500 Yukon XL with Nitto Dura Grapplers and they are not good on wet grass. I've been stuck in my yard twice with this and the camper hooked up. We've had a very wet spring and summer so far, it's really ridiculous with standing water and a spongy feel when you walk. Any way, last time I pulled my camper out of the yard I hooked my 1/2 ton Silverado 4x4 up to it but left it in 2wd. Pulled the camper out no problem. The difference was the Nokian A/T tires. Tires never even slipped.