I lost a wheel off my Tundra from a spacer. Toyota dealer had just replaced an axle shaft on warranty. They put the studs from my old axle in the new one. Toyota probably should have said "with the studs just being hammered into the new shaft, best to retorque in a few hundred". PO had installed spacers, which I had forgotten about. I felt the wobble, checked all my lugs, and a couple of miles later watched a 35" MT roll down the highway into oncoming traffic. If not for the spacer, i would have found loose lugs on the wheel. Instead, the loose lugs were on the spacer, hidden behind the wheel. This was while towing a very heavy trailer through the super twisty, redwood lined highway out to Fort Bragg Ca. If any of you have driven this stretch, you know it is not a good road for a trailer, let alone one with a three legged tow rig. New were very lucky nobody was killed.
Long and short, Toyota refused to help with $2800 repair to Tundra, due to "non oem parts". Read "spacers". They are a BAD idea for more than one reason. Just buy proper offset wheels and do it right the first time!