Hey guys! Let's dive into the world of the 2020 Gladiator Overland and figure out the perfect tire size for your ride. Getting the right tires is super important for both the look and performance of your truck. We're going to break down everything you need to know, from the stock tire size to cool upgrade options. So, buckle up and let's get started!

Understanding the Stock Tire Size

Okay, so first things first: what tire size did your 2020 Gladiator Overland come with from the factory? Usually, you're looking at a 255/70R18 tire. This size is a great all-around choice, giving you a decent balance of on-road comfort and off-road capability. But what do all those numbers mean, right? Let's break it down:

• 255: This is the width of the tire in millimeters. So, this tire is 255mm wide.
• 70: This is the aspect ratio, which means the height of the tire sidewall is 70% of the tire's width. In this case, 70% of 255mm.
• R18: This means the tire is designed to fit an 18-inch wheel.

Knowing the stock size is crucial because it gives you a baseline. You know what fits without any modifications. Sticking with the stock size means no worries about rubbing, speedometer inaccuracies, or messing with your Jeep's computer. Plus, it keeps your fuel economy in check. But, where's the fun in staying stock, am I right? Understanding this baseline helps you make informed decisions when you're ready to explore other options.

Now, why might you want to change your tire size? Maybe you're looking for a more aggressive off-road look, better traction on the trails, or simply want to fill out those wheel wells a bit more. Whatever your reason, knowing the stock size is your starting point. From here, you can start thinking about what you want to achieve with your new tires and how much you're willing to modify your Gladiator to make it happen. Upgrading your tires can dramatically change the look and feel of your Gladiator, giving it a more personalized touch and enhancing its capabilities to match your adventures. You can also consider factors like the type of terrain you frequently encounter, whether it's rocky trails, muddy paths, or sandy dunes, to guide your tire size selection. And remember, always prioritize safety and performance to ensure a smooth and enjoyable ride, no matter where the road takes you.

Exploring Different Tire Size Options

Alright, let's get into the exciting part: exploring different tire size options for your 2020 Gladiator Overland! This is where you can really start to customize your ride and make it your own. But before we dive in, remember that going bigger isn't always better. You need to consider potential rubbing issues, speedometer calibration, and whether you want to lift your Gladiator. So, let's check out some popular alternatives:

• 265/70R18: A slight upgrade from the stock size. This size gives you a bit more width and height without usually requiring any modifications. It can provide a slightly more aggressive look and a bit more grip off-road. It’s a great option if you want a subtle change that enhances both appearance and performance.
• 275/70R18: Another step up in size. This size will give you an even bolder look and improved off-road traction. However, you might start to experience some minor rubbing at full steering lock, especially if you're running aftermarket wheels with a different offset. A small lift or leveling kit can easily solve this issue.
• 285/70R17 or 285/75R17: These are popular choices for those who want a more significant upgrade. The 17-inch wheel size opens up a wider range of tire options and can often be more affordable than 18-inch tires. With these sizes, you'll definitely need a lift kit, typically around 2-3 inches, to prevent rubbing. The larger diameter provides excellent ground clearance and a more aggressive stance.
• 35x12.50R17/R18: Now we're talking serious business! These tires are for those who want a really aggressive look and maximum off-road performance. To run 35s, you'll need a substantial lift kit, typically 3.5 inches or more. You might also need to trim your fenders or install aftermarket bump stops to prevent rubbing. But the payoff is huge: incredible ground clearance, a commanding presence, and the ability to tackle almost any terrain.

Keep in mind that with each size increase, you'll likely see a decrease in fuel economy and potentially some changes in handling. Your speedometer will also be off, so you'll want to recalibrate it using a programmer like the Superchips Flashcal or similar devices. Also, consider the type of driving you do most often. If you spend most of your time on the road, a more moderate size might be a better choice. If you're hitting the trails every weekend, then a larger, more aggressive tire might be worth the trade-offs. Don't forget to research different tire brands and models to find the best combination of performance, durability, and noise level for your needs. And always read reviews and ask for recommendations from other Gladiator owners to get real-world feedback.

Considering Lift Kits and Leveling Kits

Okay, so you're thinking about going bigger with your tires, which probably means you're also thinking about lift kits or leveling kits. These are crucial for creating the clearance you need to run larger tires without rubbing and for giving your Gladiator that aggressive stance you're after. Let's break down the options:

• Leveling Kits: These are typically designed to raise the front of your Gladiator to match the height of the rear. This eliminates the factory rake and gives your truck a more balanced look. Leveling kits are usually less expensive and easier to install than full lift kits. They can provide enough clearance to run slightly larger tires, like 265/70R18 or 275/70R18, without any major issues. If you're primarily concerned with aesthetics and want a subtle change, a leveling kit is a great option.
• Lift Kits (2-3 Inches): These kits lift both the front and rear of your Gladiator, providing significantly more clearance for larger tires. A 2-3 inch lift kit is a popular choice for those who want to run 33-inch or 35-inch tires. These kits typically include new springs, shocks, and other components to improve ride quality and off-road performance. Installation can be more involved, but the results are well worth it if you're serious about off-roading or want a more aggressive look.
• Lift Kits (3.5 Inches or More): These are the big boys! If you're planning to run 35-inch or larger tires, you'll need a lift kit of this size. These kits often include heavy-duty components like long-arm suspensions, adjustable control arms, and upgraded steering components. Installation is best left to the professionals, as it requires specialized tools and knowledge. But with a lift kit of this size, your Gladiator will be ready to tackle even the most challenging trails.

When choosing a lift kit, it's important to consider the quality of the components and the reputation of the manufacturer. Look for kits that are specifically designed for the Gladiator and that have been thoroughly tested. Read reviews and ask for recommendations from other Gladiator owners to get a sense of which kits are the most reliable and perform the best. Also, keep in mind that lifting your Gladiator can affect its handling and stability, so it's important to choose a kit that maintains a good balance between off-road capability and on-road drivability. And don't forget to factor in the cost of installation, as some kits can be quite labor-intensive to install. Proper installation is crucial for ensuring the safety and performance of your lift kit.

Considering Wheel Offset and Backspacing

Alright, guys, let's talk about wheel offset and backspacing. These are super important factors to consider when you're upgrading your tires, especially if you're going with a larger size or wider wheel. Getting the wrong offset or backspacing can lead to rubbing issues, poor handling, and even damage to your suspension components. So, let's break it down:

• Offset: This is the distance between the wheel's mounting surface and its centerline. It's measured in millimeters and can be positive, negative, or zero. A positive offset means the mounting surface is closer to the outside of the wheel, while a negative offset means it's closer to the inside. The offset affects how the wheel sits in relation to the fender and suspension components. A lower offset will push the wheel further out, giving your Gladiator a wider stance.
• Backspacing: This is the distance from the wheel's mounting surface to the inner edge of the wheel. It's typically measured in inches. Backspacing affects how much clearance there is between the wheel and the suspension components. Too much backspacing can cause the wheel to rub against the suspension, while too little backspacing can cause it to rub against the fenders.

When choosing wheels for your Gladiator, it's important to consider the offset and backspacing in relation to your tire size and lift kit. If you're running larger tires, you may need a wheel with a lower offset or less backspacing to prevent rubbing. A good rule of thumb is to stick with wheels that have a similar offset and backspacing to the stock wheels. However, if you're looking for a wider stance or want to run a more aggressive tire size, you may need to experiment with different offsets and backspacings. Be sure to measure carefully and test fit the wheels before you commit to buying them. Also, keep in mind that aftermarket wheels may have different load ratings than the stock wheels, so it's important to choose wheels that are rated for the weight of your Gladiator. And don't forget to factor in the cost of lug nuts, as some aftermarket wheels may require different lug nuts than the stock wheels.

Recalibrating Your Speedometer

Okay, so you've got your new tires and wheels installed, and your Gladiator looks awesome! But there's one more important step you need to take: recalibrating your speedometer. When you change your tire size, it throws off your speedometer reading, which can lead to inaccurate speed readings, odometer readings, and even affect your transmission shifting. Fortunately, recalibrating your speedometer is a relatively simple process that can be done with a programmer like the Superchips Flashcal or similar devices.

These programmers plug into your Gladiator's OBD-II port and allow you to adjust the tire size setting. Once you've entered the correct tire size, the programmer will recalibrate your speedometer and transmission shifting to match. This will ensure that your speedometer is accurate, your odometer is correct, and your transmission shifts smoothly. Some programmers also offer other features, such as the ability to adjust your gear ratio, read and clear diagnostic trouble codes, and even tune your engine for better performance.

Recalibrating your speedometer is not only important for accuracy, but it's also required by law in some states. Driving with an inaccurate speedometer can lead to speeding tickets and other legal issues. So, it's always a good idea to recalibrate your speedometer whenever you change your tire size. The process is straightforward and can be done in a matter of minutes with the right programmer. Plus, it gives you peace of mind knowing that your Gladiator is operating safely and accurately. And don't forget to check your state's laws regarding speedometer accuracy to ensure that you're in compliance. A small investment in a programmer can save you a lot of headaches down the road.

Final Thoughts

Choosing the right tire size for your 2020 Gladiator Overland can make a huge difference in its appearance and performance. By understanding the stock tire size, exploring different options, considering lift kits and wheel offset, and recalibrating your speedometer, you can create a Gladiator that's perfectly suited to your needs and preferences. Remember to always prioritize safety and performance, and don't be afraid to ask for advice from other Gladiator owners. With a little research and planning, you can transform your Gladiator into the ultimate off-road machine!