2003 GMC Sierra 1500: What is the tire size and pressure, and wheel size?

The standard wheel size for the 2003 GMC Sierra 1500 is a 16-inch silver aluminum wheel. The recommended tire pressure on both the front and rear tires iS35 psi. The tire measurement for the front and rear tires is p245/75r16. The size of the wheel and the rim are the same for all various trim levels, including two-wheel and four-wheel drive versions. Tire pressure is very important because it helps maintain the gas mileage at a reasonable level and also keeps the tires at maximum driving efficiency. If You're driving off road land, it's safe to lower the PSI for the tires to get more traction on the surface. Tires should last about 50,000 miles but You should rotate the tires so that they wear evenly on every oil change for 7500 miles.