I run traction or an aggressive AT tire on the rear, hwys on the fronts of ALL my RWD trucks year around. Ready for snow, slush, much, dirt etc at all times. If I still do not get out at least locally in Wa St and it is snowing, usually be then, chains are required on vehicles. Be it low lands or the mtn passes. Throw on the tire chains, no issues.
I've even done the traction on the rear of my dually 4x4, hwy on the front. not to mention tow different sized tires per say too. Same diam, 75 series on front, 85;s on rear!
Marty