I've never worried about them in the past with a 4wd. I did carry and use in college, but I was driving a 2wd Volvo which really needed help in snow/ice.my other truck loves the NW snow and has never needed any chains. That said, I don't think I've ever traveled the pass with my small truck with chains required though the conditions justified it.
With the Ram I am primarily worried about compliance. I don't plan on driving with snow sufficient to require chains with the camper and I won't be in CA without the camper.
Sounds like I should either get cables or get the diamond chains and do it in the next couple of weeks.