If the hub and/or bearings were the problem, wouldn't the steering wheel shimmy occur no matter which wheels were on the front? I'm not an expert on these things, so maybe I'm overlooking something.
I'm rotating at 6000-7000 miles, I don't think that's excessive. All the extra visits have been due to the steering wheel shimmy, when it occurs. How many miles do you usually go between rotations?
You see wear first on the front tires, on a vehicle that is usually rear-wheel drive?
BTW, I've not paid anything extra to DT for all this extra work. I bought the tires there so the rotation/balance and roadforcing has been provided at no cost. Even when it has been done multiple times. However, now that we're at this point, they don't seem to have any answers.
As for rotation patterns, that's another subject. I've found that different DT shops don't follow the same patterns.
If you do find runout on the rim, it would be prudent to go ahead and test the hub anyway while you are set up. It's just being thorough
Shimmying over a period of time will cause extra wear on things including the steering rack and joints.
But you are completely correct, it sounds like a wheel or tire or both right now.
I don't rotate unless there is noticeable wear.
As an example, on my car there is none so far and I'm and 31k miles on the new tires.
The 4 runner has approx 4500 miles since new and still look like new.
Front tires usually show wear faster simply because of the turning involved.
My ex, the Uturn queen would wear out a pair of front tire in no time.
Uturns are very hard on tire wear.
It's not surprising the tire places are only doing the minimum required for free.
And even if paid, I don't know if many would be able to properly measure with a dial indicator.
If you caan't find a solution put the shakey tire on the back at least.
If you were local, I would do your runout test.
Good luck, but just take my word for not cross rotating tires. :wink2: