I would give Nokian a call to see all your options. Their tech support department is outstanding. That was another reason I went for the Nokians. The worse thing in the world is you will have to purchase new rims, but you will have safety for winter driving.
The other post on the Duratrac is another excellent choice. For the studded version you have to get in the LT sizes and the tread depth in the the LT is greater.
It boils down to your needs and wants.
Hope this helps.
Best for now.
Laredo X, Trail Rated, QTii, Sele-Terrian, Quadra Lift, Off-Road Adventure Package ii, Nokian Rotiva AT, Tow, AFE CAI, DiabloSport inTune 1000-DCX, Custom Sound System ( HAT speakers, JLAudio , Pioneer , JBL MS-8 & RF 3.sixty.3 -- see the writeup link below for more details)