I think Diagonal chains(not cable) would help with braking and side lateral movement going Down the Passes with a 5th wheel trailer with electric brakes and Cali does require them although I would Only do it if I had to and I think it would help But I have seen too many Semi's in my years of a truck driver(not a tractor trailer) in snow and Ice coming down the Passes with tractor trailers going sideways and jack knifing SCARY STUFF!!, If I got stuck in that situation I would put the truck in 4WD LOW and CREEP down
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