Single chains are a lot, lot, lot easier to put on. Carry a piece of 2x4 or 2x6 about 6 - 8" long. Run the inside tire up on it, then you have room under the outer tire to put the singe chains on - it's rather easy even.
If you thought one set of singles wasn't going to be enough traction, then carry another set and put them on the front end. If you're front tires can't grab to stay up on a curve or get traction to steer, then you aren't going anyplace.
On May 26th this year I headed south from Alaska in my truck. Got down into northern Canada (where the leaves were all out and the farmers were planting the fields) and ran into a snow storm that dumped 8" in the mountains. It was interesting to watch everyone when the traffic started to move again - especially the RVs.
Most of the problems were where everyone came to a stop because the tractor trailers that went off of the road. Most of the problems for the trucks pulling TTs or 5ers and DPs was they came to a stop on the banked curves. When they tried to start out again, their drive wheels just went sideways taking them closer and closer to the ditch or guard rails. One guy came through with a large toy hauler and he was chained up front and rear. Wasn't having a problem starting, stopping or steering, just kept moving at 10 - 15mph.
I plowed snow in the hills above Anch for years, when the roads got slick, I chained up front and rear. I got stuck sometimes with only rear chains, but never with all wheels chained and I always had a large fuel tank in the back for weight.
Bill
Nodwell RN110 out moose hunting. 4-53 Detroit, Clark 5 spd, 40" wide tracks, 10:00x20 tires, 16,000# capacity, 22,000# weight. You know the mud is getting deep when it's coming in the doors.