You can tell who made the tire by looking at the side wall molded in information. An example is:
DOT B6 D0 A 83 X 0304
The X, just before the date of manufacture is the tire manufacturer's letter ID. the B6 just after the DOT is the plant of manufacturer. See what is on the Vesta tire for manufacturer (the X mentioned above) and compare it to a Goodyear tire. They should be the same letter. The plant of manufacturer may or may not be the same.
Looking at a Michelin truck tire manual, a sample comparision is the 11R tire will cary much more weight at the same PSI than the 235. An example is at 95 PSI the 235 carries 4300 lbs. The 11R carries 5730 lbs.
The 235 has about 556 revs/mile. The 11R has about 489 revs/mile. All the above mentioned samples change depending on the model of tire. I think the sample is valid because the ratio of change remains close to what is mentioned above. If you are going to put the tires on the rear, check the minimum spacing requirement for the coach and tires.
I could not find a conversion chart that would tell you what letter, in the DOT code, goes to which manufacturer. I know X = Michelin.
I'm not sure if any of this helps you.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
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