Tire PSI and truck camper question
My question is if the truck manufacturer (Chevy) says the max psi should be 35 (on the sticker) and on the tire it says 51 max psi, would it be ok to increase the pressure from 35 to say 45ish to acco...
Forum Discussion
robertjp wrote:
Wow. Im sorry I asked. Im more confused now than when I started. Some yes, some no. I still dont know if I should/could increase the pressure on the back. Yes Goodyear P tires, 35 psi recommended normal, tires 51 psi max. Camper 1394 dry. 2017 Silverado V8 with torklift stabiloads on the back leaf springs. Im not sure what else I know. Thanks again.
Why are you confused? You have P rated tires. Whatever it says on the side wall in regards to weight gets derated some 9% or divided by 1.10
This is how P rated tires work on a truck application.
@ 35 psi your tires can handle 2460/1.10 = 2236 lbs per tire
At any other pressure above 35 psi - 51 psi can handle the same weight 2236 lbs.
Increasing the pressure does nothing in regards to load capacity.
So the most you can put on the rear of the truck in regards to tires is 4472 lbs
Tires are always rated higher then the trucks suspension. And your probably asking this because you feel your overweight?
Lets make you feel safe knowing your within your limits.
What we know
Camper 1394 dry
Tires 4472 for rear total. ( Irrelevant at this point)
What we need to know.
Payload of truck from yellow sticker in the door jam.
Gross rear axle rating from tag on door jam. ( ie: 3900, 3750, etc)
And also open up the glove compartment and tell us what that sticker says for truck campers..
Looks like this..
