What Size Tires Can I Put On My GMC Sierra 1500?

When it comes to tire fitment on your GMC Sierra 1500, there are several factors to consider. These include the size of the tires you want to use, how they will affect your vehicle's performance and handling, as well as any other necessary modifications needed for proper installation.

In this article, we'll discuss what type of tires can be used on your GMC Sierra 1500 and how these can affect the overall performance of your vehicle. We'll also explain what modifications may need to be made for proper installation, as well as discuss other safety considerations when using different tire sizes.

What the biggest size tire you can fit with no lift?

The maximum tire size you can fit with no lift on a GMC Sierra 1500 is 33-inches in diameter. This size provides the best balance of performance, handling and safety without compromising any components of your vehicle. However, if you are looking for more performance or better off-road capabilities, you may need to opt for larger tires.

Will bigger tires hurt my truck?

Bigger tires may seem like they would be great for off-roading, but in fact, they have several drawbacks. They raise your car's clearance which increases body roll and load transfer. This makes it harder to control your car at high speeds and can negatively impact its balance. Additionally, large tires increase the wear and tear on your suspension system.

Will bigger tires affect my gas mileage?

Yes, larger tires can have an effect on your vehicle's fuel economy. The additional weight of the tire will cause the engine to work harder which results in increased fuel consumption. Additionally, due to the extra rolling resistance created by larger tires, your vehicle's acceleration may be decreased. It is important to consider these factors when choosing the size of tires for your GMC Sierra 1500.

What modifications are needed for bigger tire sizes?

When selecting a larger tire size, several components of your GMC Sierra may need to be modified. This includes the addition of a lift kit and/or wheel spacers to accommodate the larger tires. Additionally, you may need to make adjustments to suspension components such as shock absorbers, coil springs and control arms for proper fitment. It is important to note that some tire sizes may require more extensive modifications than others, so it is best to consult with a professional mechanic before making any changes.

What are the safety considerations?

When installing larger tires, it is important to consider how they will affect the overall performance of your vehicle. The larger the tire size, the more strain will be placed on components such as brakes and suspension. Additionally, it is important to note that having too much weight on one side of the vehicle can cause excessive wear and tear on these components, so be sure to evenly distribute any additional weight across all four tires.


The size of tires you can install on your GMC Sierra 1500 will depend greatly on what type of performance and handling you desire. It is important to consider factors such as fuel economy, safety considerations, and necessary modifications before selecting a tire size for your vehicle. By taking all these aspects into consideration, you can choose the best tire size that meets your needs and ensures your vehicle is running at its best.