Run the recommended tire pressure set by Dodge and not the MAX tire pressure that is on the sidewall of the tire. I believe it's around 35psi. You don't need to run a higher pressure for larger tires, just more volume. Unless you are offroading, hualing stuff or looking for maximum fuel economy the stock recommended pressure is good.
First are they 35/12.50/20 or 295/65/20 ?? I have the 295s and run 40psi cold......this seems to be a good psi for them, so far wear is great and feel seems just right I would guess 35psi would be fine as would 45psi but took the inbetween # and it is working for me. Lower psi with a wider footprint tends to increase wandering when riding on uneven pavement......
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