[BFD]

I grew up without four-wheel-drive vehicles, but we used chains instead. I’ve also driven 2 Wheel Dr. service trucks with chains on the back. I could go more places than the four-wheel-drive vehicles and it was a lot more secure… No sliding around.
if I knew about bad conditions, ahead of time, I would let some air out of the tires, put the chains on, and air the tires back up. You can’t drive very fast with chains on, but the traction is awesome.

 

[Bigwheels94]

I'm not a chain novice with my trucks. They do work well. I've never towed a trailer in snow. I assume that if I chain up every tire & set the brake controller right going down a mountain road in a few inches of snow & ice won't be much of a problem. Even going up a slight incline might not be a problem. But I've never done it. The road I have to take will likely be driven before I head out so it's going to be compact snow & ice. I think the brake controller setting will be key. I can set it so the trailer brakes virtually match the trucks braking & I'll be ok. Assume that will be a fine line.

 

[Gr8bawana]

Chains all around is the way to go. I've gone down and up fairly steep dirt roads while towing the T/T as well. Slow and steady will get you where you want to go and back out again.
Once the snow starts melting and the road gets muddy all bets are off. Ask me how I know.

 

[Bigwheels94]

Thank you for the reply. It's hard to test these theories without risking about $100k of truck & trailer ending up at the bottom of a ravine...