Ive heard good reviews out of then but have no first hand experience. I have a buddy that switched from Bfg AT's to them and says they are a better all around tire for farm use.
The Dura?
Look at the weight rating on a few of them.
Terra Grappler is 3195
Dura is 39xx. Seems like a good point for an SRW truck.
Dura grapplers are a great street tire that will shock you with snow/ice traction. Ride is quiet and smooth.
They are soft...so drive smart and rotate often...every oil change. I got an honest 50k out of them on a 2wd dually...and I don't drive them till bald.
That being said...looking at the Toyo. AT II...it looks like they made good changes! I would price those out too to see. That style tread pattern will be not as quiet...close...but will have a little more grip in loose snow or dirt.
The only tires discount carries in that size is BFG M/T KM2 or Nitto Trail Grapples
Fat fingered from my phone
Terra Grapples suck....no traction and still wear fast. Duras are like a mini version of an all position all season big truck tire with lots of sipes and big deep channels continous around the entire circumfrence...