I need some input from those of you who run Duratracs on a Prerunner. I am running 265/70/17, load C of course, on a 2006 Prerunner DCSB. I researched the hell out of this tire before purchasing, and I see that many of you run this as well. As for suspension, I have 5100s all around (fronts at 1.75"), 1" block in the back (crap--I know. 1.5" aal is here, just need to install), and 1.25" spidertrax. Other than that, it's all stock. My previous tire was Hankook DynaPro AT/M 265/65/17. I have stock sport wheels.
Now, for the issue: I put the Duratracs on at approx. 121k miles. They rode so perfect and smooth for the first 2-3K miles. A little noisey, but I knew that was to be expected. Just this past Sunday (4/14/13) I started getting HORRIBLE vibes inside the cab at highway speed, and at lower speeds (25-30 mph). If I pressed the brake, the vibrations would worsen. If I let off of the gas, they would worsen here as well. I took the truck back to the shop just yesterday to have them take a look. I requested a road force balance, after reading how much of a pain these tires are to balance. The road force balance indicated that the tires were perfect. The explanation from the tire shop is that this is too aggressive a tire to run on my truck, and that the tire is really designed for a commercial truck. I think this is bs, because SO MANY of you run this exact same tire. What they suggest is replacing this tire with the GY Wrangler Silent Armor, same size, on their dime. They will not order a new set of Duratracs to see if the current set is merely a bad set. The only option I can think of, other than turning here for input and getting a second opinion, is trying hub centric rings. I don't know why these would help, considering I have stock wheels, but I've read a few posts that indicate installing these does help w/ the vibrations.
If anyone has had similar experiences with this tire, please chime in. I know there are dozens of threads about Duratracs, but many of those contain references to popcorn and sammiches. I just want facts, if you please. I really want some advice and guidance, too. I love the tire and do not want to change, but obviously I don't want to compromise the ride either. As of right now, the ride is quite horrible.