Thanks much for the quick replies, guys.
I can't really say that the rims are the much-feared Firestone Type RH-5: The tire man told me these were the "worst kind" of split rims, which I interpreted as "true widow maker". He's not going to admit either that they aren't put on right or that the tires are faulty. After the new tires' installation I complained about the pronounced out-of-round condition on the right side. He found that two out-of-round tires were on the same side and in sync. His solution was to pair each of the defective ones with a good one on each side, claiming that would reduce the effect to tolerable.
I requested the 75 lbs because I wanted to haul 5 tons of rock and I thought the Chevy data bulletin recommended that pressure.
Does the following procedure sound foolish or unreasonable? Chains on inside (out of round) wheels/tires; deflate these to, say, 10 lbs; remove chains; drive around for a few miles, supported by the outside, round ones; chains back on inside ones; inflate these back to 75 lbs (hoping to hear loud seating noises); check for improvement.
What do you think? I don't pretend to be at all knowledgeable. I just want to get some enjoyable work done and this is interfering.
