Hey guys! Are you thinking about installing a rear leveling kit on your 2015 GMC Yukon? You've come to the right place! This guide will walk you through everything you need to know, from why you might want one to choosing the right kit and getting it installed. Let's dive in!

Why Level Your 2015 GMC Yukon?

Before we get into the specifics, let's talk about why you might want to level your Yukon in the first place. From the factory, many trucks and SUVs have a raked stance, meaning the rear sits slightly higher than the front. This is often done for a few reasons, primarily to improve aerodynamics and maintain a level ride when hauling or towing. However, a raked stance isn't always ideal for everyone.

Aesthetic Appeal: First and foremost, many Yukon owners simply prefer the look of a level vehicle. A leveling kit can eliminate that factory rake, giving your Yukon a more aggressive and balanced appearance. This is often the most common reason people opt for a leveling kit.

Larger Tires: Another popular reason is to create more clearance for larger tires. If you're looking to upgrade your tires to something bigger and more aggressive, a leveling kit can provide the extra space you need to avoid rubbing or other fitment issues. Keep in mind that you'll still want to check the maximum tire size recommended for your Yukon to ensure a safe and proper fit.

Improved Ground Clearance: While a rear leveling kit primarily addresses the rear height, it indirectly contributes to overall ground clearance, especially when combined with larger tires. This can be beneficial if you frequently drive on unpaved roads or encounter obstacles that might otherwise scrape the undercarriage of your vehicle. More ground clearance means less worry about damaging your ride when you're out exploring.

Towing and Hauling Considerations: While leveling kits are often used for aesthetic or off-road purposes, it's important to consider the impact on towing and hauling. Leveling the rear can slightly reduce the vehicle's capacity to handle heavy loads without sagging. If you frequently tow or haul heavy items, you might want to consider other suspension upgrades, such as air springs or helper springs, in conjunction with a leveling kit to maintain optimal performance and safety. These upgrades can help to compensate for the reduced rake and ensure that your Yukon remains level and stable when loaded.

Ride Quality: Some leveling kits can slightly alter the ride quality of your Yukon. Depending on the type of kit and the quality of the components, you might experience a firmer or more responsive ride. It's essential to research different kits and read reviews to get a sense of how they might affect the ride quality of your vehicle. Consider your personal preferences and driving habits when making your decision. If you prioritize a smooth and comfortable ride, look for kits that are designed to minimize changes in ride quality.

Types of Rear Leveling Kits for the 2015 GMC Yukon

Okay, so you're sold on the idea of leveling your Yukon. The next step is to understand the different types of kits available. For the rear of the 2015 GMC Yukon, you'll typically encounter these options:

Coil Spring Spacers: These are the most common and generally the most affordable type of leveling kit for the rear. They consist of spacers that are installed above or below the coil springs, effectively raising the rear ride height. Coil spring spacers are easy to install and don't require any major modifications to the suspension. They're a great option for those looking for a simple and budget-friendly way to level their Yukon.

Coil Spring Replacement: These kits include new coil springs that are taller than the factory springs. This provides a more significant lift and can improve ride quality compared to spacers. However, they are also more expensive and may require more extensive installation. If you're looking for a more substantial lift or want to improve the overall performance of your suspension, coil spring replacement kits are a good choice.

Air Suspension Adjustment: Some 2015 GMC Yukon models come equipped with air suspension in the rear. In these cases, leveling can be achieved by adjusting the height sensors or using aftermarket modules to recalibrate the air suspension system. This is a more complex method, but it allows for adjustable ride height and can maintain the factory ride quality. If your Yukon has air suspension, this is the most seamless way to achieve a level stance without compromising the functionality of your air ride system.

Choosing the Right Kit

With a basic understanding of the types of leveling kits, let's figure out how to choose the right one for your 2015 GMC Yukon. Here's what to consider:

Lift Height: Decide how much lift you want to achieve. Most rear leveling kits provide between 1 to 3 inches of lift. Consider the size of tires you plan to run and the overall look you're aiming for. A mild lift of 1 to 1.5 inches is often enough to eliminate the factory rake and provide a subtle but noticeable improvement in appearance. If you're planning to install larger tires, you may need a taller lift to ensure adequate clearance. Be sure to measure the existing rake of your Yukon to determine the exact amount of lift you need to achieve a level stance.

Budget: Leveling kits range in price from around $50 for basic spacers to several hundred dollars for more comprehensive kits with replacement springs or air suspension modules. Set a budget and stick to it. Don't forget to factor in the cost of installation if you're not planning to do it yourself. While it's tempting to go for the cheapest option, remember that quality and durability are important factors to consider. Investing in a reputable brand and a well-designed kit will ensure that your leveling kit performs reliably and lasts for years to come.

Installation: How comfortable are you with working on your vehicle? Some leveling kits are relatively easy to install with basic tools, while others require more specialized equipment and expertise. If you're not confident in your abilities, it's best to have a professional install the kit. Even seemingly simple kits can be tricky to install correctly, and improper installation can lead to safety issues or damage to your vehicle. Consider the time and effort involved in the installation process and whether it's worth it to pay a professional to do the job right.

Ride Quality: Read reviews and ask around to get a sense of how the kit will affect the ride quality of your Yukon. Some kits can make the ride firmer, while others maintain a more comfortable feel. Think about what's important to you in terms of ride quality and choose a kit accordingly. If you primarily use your Yukon for daily driving and family trips, you'll likely want to prioritize comfort over performance. On the other hand, if you're planning to do a lot of off-roading, you may be willing to sacrifice some ride comfort for improved handling and stability.

Brand Reputation: Stick with reputable brands that have a proven track record of producing high-quality leveling kits. This will ensure that you're getting a reliable and durable product that will stand up to the rigors of daily driving and off-road use. Look for brands that offer warranties and have positive customer reviews. A well-known brand is more likely to provide good customer support and stand behind their products.

Installation: DIY or Professional?

Now, let's talk about installation. You've got two main options: do it yourself or hire a professional. Here's a breakdown to help you decide:

DIY: If you're mechanically inclined and have some experience working on vehicles, you might be able to install a rear leveling kit yourself. Basic kits with coil spring spacers are generally the easiest to install. You'll need some basic tools, including a jack, jack stands, wrenches, and sockets. Make sure you have a safe and well-lit workspace. The biggest advantage of DIY installation is the cost savings, but it's crucial to prioritize safety and follow the instructions carefully. If you're not comfortable with any part of the process, it's best to seek professional help.

Professional Installation: If you're not comfortable working on your vehicle or if the kit is more complex, it's best to have a professional install it. A professional mechanic will have the necessary tools, experience, and expertise to install the kit correctly and safely. While professional installation will cost more, it will give you peace of mind knowing that the job has been done right. Shop around for quotes from different mechanics and make sure they have experience installing leveling kits on GMC Yukons.

Step-by-Step Installation Guide (General Overview)

Disclaimer: This is a general overview. Always refer to the specific instructions included with your leveling kit. Safety first! Use jack stands and wear safety glasses. Do not attempt if you are not familiar with automotive repair.

1. Prepare the Vehicle: Park your Yukon on a level surface, engage the parking brake, and chock the front wheels. Loosen the lug nuts on the rear wheels.
2. Raise and Support the Vehicle: Use a jack to raise the rear of the vehicle and place jack stands under the frame rails for support. Never work under a vehicle supported only by a jack.
3. Remove the Wheels: Remove the rear wheels.
4. Disconnect Suspension Components: Depending on the kit, you may need to disconnect the rear sway bar, shocks, and other suspension components to allow the axle to droop.
5. Install the Leveling Kit: Install the coil spring spacers or replacement springs according to the manufacturer's instructions. If you're working with air suspension, follow the instructions for adjusting the height sensors or installing the aftermarket module.
6. Reassemble Suspension Components: Reconnect all of the suspension components that you disconnected earlier, making sure everything is properly tightened.
7. Reinstall the Wheels: Reinstall the rear wheels and tighten the lug nuts to the proper torque specification.
8. Lower the Vehicle: Carefully lower the vehicle to the ground and remove the jack stands.
9. Final Check: Double-check all of your work to make sure everything is properly installed and tightened. Take the vehicle for a test drive and listen for any unusual noises or vibrations. Have the alignment checked by a professional to ensure that your Yukon handles properly.

After Installation: Alignment and Adjustments

After installing a rear leveling kit, it's crucial to get your Yukon's alignment checked by a professional. Leveling the rear can affect the suspension geometry, which can lead to uneven tire wear and handling problems. A proper alignment will ensure that your Yukon handles safely and predictably.

In addition to the alignment, you may also need to adjust the headlights to compensate for the change in ride height. Leveling the rear can cause the headlights to point too high, which can blind oncoming drivers. Adjusting the headlights will ensure that they are properly aimed and provide adequate illumination without causing a safety hazard.

Conclusion

So there you have it! Everything you need to know about installing a rear leveling kit on your 2015 GMC Yukon. Whether you're looking to improve the appearance of your truck, create more clearance for larger tires, or simply want a more level ride, a leveling kit can be a great option. Just be sure to do your research, choose the right kit for your needs, and install it properly. Happy leveling!