So a few years back we went camping/ATVing in the mountains, knew potential for a bit of snow was possible but we got dumped on. Sunday things cleared up before the next major storm and we figured we need to get out. There were two similar rigs mine SRW F350 with 39' toy hauler and buddy with a DRW F350 similar toy hauler. Be both left the extra water in our tanks hoping/thinking it would help with better traction n the drive wheels. We went very slow down the mountain, no more then about 20MPH and most the time around 10 or less. We we made it down, with a lot of stress. Our SRW did better then my buddies DRW, he slipped several times while going down, but I didn't.
We both had chains, but we we didn't have them for the trailer - mistake #1. Drive wheels are not enough you need to be able to stop your trailer from sliding too. Have both. The water weight, well I'm not sure it was good or bad, toy haulers already have a pretty high pin weight. I my buddies case we both think the added weight may have promoted his RV to slide a bit in the curves, hard to know one way or the other. 4WD is nice but doesn't do squat to stop you. See above about trailer chains.
We were in a bit of a bad situation had we stayed longer it probably would have gotten worse and the forecast was bad weather for the next week so we had to bug out.
Though I've changed RVs I carry tire changes not that I will ever use them, but so I can if I had to and to be legal with the state patrol. Snow is one thing, ice it another. I would prefer to just stop if at all possible.
