On the
www.chevelles.com web site there is quite a bit of info on alignment specs for radial and belted tires. Not quite the same numbers. Your car will like the appropriate specs. The scariest ride I ever had was in a '79 Chev with radials on the front and belted on the back. The ruts in the highway would just about throw us off the road. Mixing these tires could be deadly. My memory must be going because I don't remember our Firebird or Chevelle wandering all over the road. The bird at 130 mph was as stable as a rock. It must have been. I'm still here. I had the old original Uniroyal Tiger Paws on our Chevelle for some pictures and a little driving. Seemed fine to me. I then had an old timer set up the steering for radials. With standard steering I could drive down the highway with one finger. Parking still required two hands. I've never had a problem with T/As. They look good and the lettering is similar in size to what they used in '69.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now.