... I can't seem to find any serious warping on any of them... one wheel had a radial runout of about 0.040". Otherwise, they were all between 0.015" and 0.030".
I'll get them installed and torqued and go for a drive and see if I get any vibrations... but I think they will be ok.
-Bear
Your radial measurements don't alarm me. There isn't anything there that should have gotten a production tire guy's attention. The lateral runout, you don't mention the amount, so I assume it wasn't tremendous. My eyebrow raises up more over "I wonder if those wheels didn't seat well on the balancer".
Lateral runout (wobble) won't bother you in any way at all, whatsoever. Unless you can see it while you're driving. It won't shake, vibrate, or give any annoyances.
If you check your wheel hubs, it's very common on older cars to find 10, 20 thousandths of radial descrepency there too. You stack tolerances to bring a wheel into closer axial position.
The dynamic ones are a smidge better, but I'm guessing it's more about "speed" than anything else.
They're more about modern cars and modern bearing designs. Solid axles and tapered roller bearings didn't give two dumps about the wheel being balanced both inside and out. Ball bearings very much live a longer, happier life if you do that extra step.
It's funny, the digital (and analog) dynamic balancer, the new style tire machines... They're SLOW compared to the older designs. And require some basic understanding of stuff to get them to work. It might have taken a little longer to learn to flip the shims around on an old tire changer quickly and efficiently, but even still, they'd turn out tires two to one over the modern style. But they relied on the rim being tough, stiff enough to carry some stress. Modern wheels won't take it. Plus the alloys, you don't want pressure from the bar on the edge of those. The bubble balancer, same thing. Show the new kid how to set two weights and slide it to level... With no experience he'll get tires out two to one over the modern ones.
The reason behind the new machines is the service department's ongoing battle to keep up with cost savings (and lately, weight savings) in the original building of the vehicles... It's not because they're faster. They are more precise, and in the case of the tire changer, they're more gentle, as is required.
