BenK wrote:
Know won't help much...but have to try...
As an example...consider going from a LT class tire to a lower class tire...like P class
Using the current posted logic...would it then make sense to air up your new P class tire using the higher class LT tire's PSI's ?
The P class might blow up...
Agree, not a good experiment.
However I’ve tried that on a few trucks. 1/2 tons with cheesy OE cr@p tires and heavy trailers.
I’ve consistently run P and XL rated tires WELL above their max psi rating on the rear axle. No issues. Like 55-65 psi cold on 35-44psi max tires.
Recommended? Nope
Works? Yup. Makes a squishy tire handle a trailer much better.
Note I don’t do this on the steering axle.
