help from 4wd guys (traction, tires, replace, paperwork)
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On an earlier thread a couple weeks ago, I asked a question about noisy 4wd in my '05 Silverado. I ended up going to the dealer yesterday and they replaced an actuator that they said was not engaging properly. They also replaced a seal that was bad. When they gave me the paperwork, the service manager also told me my tires could be the problem. I just recently put new tires on the back end. Same size as the originals, but with a more aggressive tread. The front tires are original with 50,000 miles - they still pass inspection. Dealer is telling me there's enough difference in diameter that it will cause problems when I use 4wd. Are they just full of sh-- or do I have a problem?
On a 4X4 you should change all 4 at one time. Differences in diameter, as well as traction can cause problems when running in 4 wheel drive. Same size stamped on the tire, may not be the same diameter rolling down the road. Would it be enough to cause problems? Hard to say without actually measuring the diameter of the tires.
Read the Owner's Manual. Chances are, there is a section in there about tires, and it will state quite firmly that you should ALWAYS replace all four at the same time, and they should all be the same size and the same tread pattern.
Yup. It may cause binding, especially on part-time 4-wheel drive.
I never understood why people replace two tires at a time. There are no benefits to it. NONE.
Rotate regularly and replace all four at the same time.
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