Tires: Differing tire pressure recommendations, Chevy Suburban. Tire Pressure

Question
I own a 1993 Chevy Suburban.  The label on the door jam says the tires should be LT245/75R16 with a tire pressure of 45 psi.  When I had my tires replaced, they were replaced with P245/75R16 tires and were filled to 35 psi.  What is the correct psi for the tires I have on the truck now?  Thanks!

Answer
Carin,

Ordinarily I don't recommend the replacement of "LT" tires with "P" tires.  The reason I don't recommend this that usually there is a significant difference in load carrying capacity and you either have way too much or way too little.  Not to mention that tyhe sprong rates of the 2 types are quite different and this affects the way the suspenion reacts to road input.

But this is one of those exceptions.  This is at the borcerline between the 2 and I think it mioght be OK to do.  Just be aware that the "P" tiores are much softer and will tend to sway and react slower.

Oh yes, use 35 psi.