If towing you trailer in the snow, at minimum a link style chain for the rest of truck, cables for trailer.
With this said, I prefer the diamond style on truck, and links on trailer. Cables on front drive axle if conditions are that bad. I've only needed cables once towing purposely a trailer to local ski areas in Washington state.
Reality is, you 350 probably has a paid for gvw license at or above 10,000 lbs. Technically speaking, empty in 4wd, you could be required to put chains on when the "if over 10,000 GVW, must have chains on" sign is up. At least here in Way St that is the case.
Another to add, diamond chains are probably the easiest to put on of any style chain that I've used in 40 something years of chaining a rig up one to two minimum times a year I've headed to local ski areas 20-30 times a winter. Includes 4x, rwd and fwd, with and without snowflake or studded tires.
If it's that bad, do yourself a favor, put on the chains, at least you now know, you can stop, won't slide, be the idiot in 4wd that knocks out the rwd rig, which is 90+%0of accidents on local mountain passes.
Marty
