Tire age

Another thing is they these newer tires have much higher max pressure than 32 psi like the 70’s.

So dont go by the tire pressure chart that says 24psi front and rear on my 1970 New Yorke. The Hankook 235/75/15 tires are 50 psi max.

so these tires at 24 will be less that half way inflated.
I run them at 44psi and that has good handling for the huge, heavy vehicle. 24 it looks low with a large bulge, 32 isn’t much better. Nd the cornering is just dangerous with 24 psi.

I worked at a tire store 40 years ago. Yes most tires that came in were low on air.