What tires come on a GMC Sierra?
Tires for the GMC Sierra 1500 come in the following sizes: P235/75R16. P245/75R16. LT245/75R16/E. GMC Sierra 1500 (GMTT1) The current and fifth generation Sierra 1500 from 2019-2025 utilizes tires from 17 inches up to 22 inches, depending on the truck’s trim level.
What is the best tire pressure for a GMC Sierra 1500?
GMC Recommended Tire Pressure for the Sierra 1500 And if you drive an HD model like the GMC 2500 or 3500, target psi levels are usually around 35 psi; with that said, keep in mind that suggested psi levels are likely higher for models with a diesel engine. We recommend the following when it comes to RAM 1500 trucks. PSI For All Tires. PSI For The Front Tires. PSI For The Rear Tires.In most of these cases, 40 psi should be more than enough, and since most modern tire designs will allow up to 44 psi (in some cases more) this is not a problem. If you have a heavily loaded vehicle, up to 44 or even higher is ok if the tire allows it, but this is a little high for most vehicles.