These days I imagine they are primarily used in mountainous areas.I remember the cool 4x4’s during the blizzard of 78, Ford Hi-Boy to name one, but the truth was my dads 64 C-10 with camper shell and tire chains went everywhere they did. Have said for years I should get a set for my truck but never do and really haven’t had a need for them like back then. Any of you still use them?