Tire Rating

This sticker on driver's door or door jam in on every 2006+ vehicle:



It lists tire size and vehicle manufacturer pressure.

The door jamb sticker has all the tire info on it that you need.

The load range relates more to maximum inflation pressure than it does to actual plies any more. A "E" tire will have a max inflation pressure of 80psi while the "D" tire is 65 psi (I think). They may both have the same number of actual plies in the tread and sidewall even though the have different "ply ratings".

Terryallan wrote:

freddmc wrote:
How does one find out what carrying capacity the tires should have on a truck?

Regards

Fred

Find your GVWR on the door post. The carrying capacity of your tires, has to add up collectively to the GVWR of the truck. however, You'll end up with more than you need.

Actually GVWR has nothing to do with sizing a tire to the trucks axles.
The tire capacity has too meet the highest axle rating which is usually the trucks RAWR
Tire selection
S4.2.2 Tire load limits for multipurpose passenger vehicles, trucks, buses, and trailers.
S4.2.2.1 Except as provided in S4.2.2.2, the sum of the maximum load ratings of the tires fitted to an axle shall not be less than the GAWR of the axle system as specified on the vehicle's certification label required by 49 CFR part 567. If the certification label shows more than one GAWR for the axle system, the sum shall be not less than the GAWR corresponding to the size designation of the tires fitted to the axle."

Make sure the tire has the capacity and the proper load range.

freddmc wrote:
How does one find out what carrying capacity the tires should have on a truck?

Regards

Fred

Find your GVWR on the door post. The carrying capacity of your tires, has to add up collectively to the GVWR of the truck. however, You'll end up with more than you need.

No problem. I own a tire store and hear that alot when I tell my customers. If I can help, let me know.

I did not know that's what the letters stood for. I've read dozens (hundreds?) of posts of here about tire size, pressure, etc. and that's a first. Thanks for posting it.:)

Also, your tires will have the max load in lbs somewhere on the sidewall.

You will have a sticker located somewhere on the inside of the driver door jam. It will tell you the size and the load rating that should be on the truck. If it is a heavy ply tire, it may use letters. 2 plys for each letter. For example, load range E would be a 10 ply, F would be 12 ply and G would be 14 ply.