You Should Know / Using Your Trailer / Trailer Tires
To determine the proper tire size for your trailer model, refer to the VIN certification plate located on the front left side of your trailer. This plate will also state the proper tire rim. There is also a tire placard in the same proximity.
Recommended air pressure can also be found on the VIN certification plate, tire placard, and it will be molded on the tire. Always run at full pressure as indicated on tire sidewall.
Should your certification plate be damaged, your dealer can help you in determining the proper tire and rim size.
When jacking up your trailer to change tires, follow the same procedure that you used in checking hub bearings.