Soften them until the steering feels mushy, then add some air till it straightens out. I run 60 psi in my pick-up when not loaded or towing, those are 80 psi tires and rattle my teeth without a load.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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