I agree that they would only have to be used on the front wheels. I don't think that a rear tire blowout will cause a life threatening accident, in general. However, the horror stories about front tire blowouts really scares me. I've often thought about buying the Tyron bands, now there's Rodgard inserts available.
So far, I've been comforting myself by keeping new good brand tires on the front, using a TPMS and driving very carefully.
But I realize that if I experience a front blowout that almost kills me or my wife, then I'll be wishing I'd made the decision to use the Tyron bands or Rodgard inserts. Of course, if the accident kills us, then we won't care.
Jim & Kate
2016 Creekside 23RKS, 2014 Ram 1500 Eco Diesel
1995 Monaco Dynasty 36', 2005 Honda Pilot