Upgrading your Jeep Gladiator's rear control arms can significantly enhance its performance, both on and off the road. Whether you're looking to improve articulation for better rock crawling, correct your suspension geometry after a lift, or simply want a more robust and durable component, aftermarket rear control arms are a popular and effective modification. This guide will walk you through everything you need to know about Jeep Gladiator rear control arms, helping you make the best choice for your needs and driving style.

Understanding Rear Control Arms

Before diving into specific products and upgrades, let's clarify what rear control arms are and what they do. These arms connect the rear axle to the frame of your Jeep Gladiator. They play a crucial role in maintaining axle position, controlling wheel movement, and ensuring proper suspension geometry. The factory control arms are typically designed with a focus on cost-effectiveness and ride comfort for everyday driving. However, they often lack the strength and adjustability required for more demanding off-road use or lifted vehicles.

Why Upgrade? Several reasons might prompt you to consider upgrading your Jeep Gladiator's rear control arms:

• Lifted Suspension: When you lift your Jeep, the suspension geometry is altered, which can lead to issues like driveline vibrations and poor handling. Adjustable rear control arms allow you to correct the axle's position, restoring proper geometry and improving ride quality.
• Off-Road Performance: Stock control arms may not be strong enough to withstand the stresses of aggressive off-roading. Upgraded arms made from stronger materials can handle more abuse and provide better articulation, allowing your Jeep to navigate challenging terrain more easily.
• Durability: If you frequently drive on rough roads or off-road trails, the factory control arms can wear out or even break over time. Upgrading to more durable arms can provide peace of mind and prevent costly repairs down the road.
• Adjustability: Adjustable control arms allow you to fine-tune your Jeep's suspension for optimal performance. This is especially useful if you have a modified suspension setup or plan to run different tire sizes.

Types of Rear Control Arms

When shopping for Jeep Gladiator rear control arms, you'll encounter several different types, each with its own advantages and disadvantages. Here's a breakdown of the most common options:

• Fixed Length Control Arms: These are non-adjustable control arms that are typically used to replace damaged or worn-out factory arms. They are a good option if you're not looking to change your suspension geometry or improve off-road performance.
• Adjustable Control Arms: These arms feature an adjustable end that allows you to change the length of the arm. This adjustability is crucial for correcting suspension geometry after a lift and optimizing axle position. Adjustable arms are available in various styles, including those with heim joints, Johnny Joints, or rubber bushings.
• Heim Joint Control Arms: Heim joints are spherical bearings that offer a high degree of articulation. They are commonly used in off-road applications where maximum flexibility is required. However, heim joints can be noisy and require more maintenance than other types of joints.
• Johnny Joint Control Arms: Johnny Joints are a type of spherical bearing that offers a good balance of articulation and durability. They are a popular choice for Jeeps that are used both on and off-road.
• Rubber Bushing Control Arms: Rubber bushings provide a comfortable ride and require minimal maintenance. They are a good option for Jeeps that are primarily used on the street.

Material Matters: Choosing the Right Material for Your Needs

The material of your rear control arms significantly impacts their strength, durability, and overall performance. Here's a look at common materials:

• Steel: Steel is a popular choice for control arms due to its high strength and affordability. Steel control arms are typically made from either DOM (Drawn Over Mandrel) tubing or chromoly steel. DOM tubing offers good strength at a reasonable price, while chromoly steel is even stronger but more expensive.
• Aluminum: Aluminum control arms are lighter than steel arms, which can improve fuel economy and handling. However, aluminum is not as strong as steel, so aluminum control arms are typically used in applications where weight savings are a priority over ultimate strength.

Choosing the right material depends on your budget and how you use your Jeep. For heavy off-roading, steel is generally recommended. If you're focused on daily driving and want to save weight, aluminum might be suitable.

Key Features to Consider

When selecting rear control arms for your Jeep Gladiator, consider these features:

• Adjustability: Determine if you need adjustable control arms based on your lift and desired suspension geometry correction.
• Material: Choose a material that matches your budget and driving style.
• Joint Type: Select the appropriate joint type for your needs, balancing articulation, durability, and noise.
• Construction: Look for well-constructed arms with quality welds and durable finishes.
• Brand Reputation: Research brands and read reviews to ensure you're buying from a reputable manufacturer.

Installation Considerations

Installing rear control arms can range from a straightforward DIY project to a task best left to professionals. Here are some key considerations:

• Tools: Ensure you have the necessary tools, including wrenches, sockets, a torque wrench, and potentially a ball joint press or pickle fork.
• Safety: Always use jack stands to support your Jeep securely before working underneath it.
• Torque Specifications: Follow the manufacturer's torque specifications when tightening bolts to avoid damage.
• Alignment: After installing new control arms, it's essential to get a proper wheel alignment to ensure optimal handling and tire wear.
• Professional Installation: If you're not comfortable with the installation process, consider having a professional mechanic install your new control arms.

Top Brands for Jeep Gladiator Rear Control Arms

Several reputable brands offer high-quality rear control arms for the Jeep Gladiator. Here are a few of the most popular:

• TeraFlex: Known for their durable and well-engineered suspension components, TeraFlex offers a range of rear control arms for the Gladiator.
• Rock Krawler: Rock Krawler specializes in off-road suspension systems and components, including heavy-duty rear control arms.
• MetalCloak: MetalCloak is known for its innovative suspension designs and high-quality materials.
• Synergy Manufacturing: Synergy Manufacturing offers a variety of performance suspension components, including adjustable rear control arms.
• JKS Manufacturing: JKS Manufacturing is known for its high-quality and innovative Jeep suspension products.

Step-by-Step Installation Guide

Disclaimer: Working on your vehicle can be dangerous. This guide is for informational purposes only. Always consult a qualified mechanic if you are not comfortable performing this work yourself. Safety first!.

Tools and Materials Needed:

• New rear control arms
• Jack and jack stands
• Wheel chocks
• Wrench set
• Socket set
• Torque wrench
• Penetrating oil
• Safety glasses
• Gloves

Step 1: Prepare the Vehicle

1. Park your Jeep Gladiator on a level surface.
2. Engage the parking brake and chock the front wheels.
3. Loosen the lug nuts on the rear wheels.
4. Use a jack to lift the rear of the Jeep and place jack stands under the frame rails for support.
5. Remove the rear wheels.

Step 2: Remove the Old Control Arms

1. Spray penetrating oil on the control arm bolts and let it soak for a few minutes.
2. Use a wrench and socket to remove the bolts securing the control arms to the axle and frame.
3. If the bolts are seized, use a hammer to gently tap them out.
4. Carefully remove the old control arms.

Step 3: Install the New Control Arms

1. Install the new control arms in the reverse order of removal.
2. Make sure the control arms are properly aligned before tightening the bolts.
3. If you have adjustable control arms, adjust them to the desired length.
4. Torque the control arm bolts to the manufacturer's specifications using a torque wrench.

Step 4: Reinstall the Wheels and Lower the Vehicle

1. Reinstall the rear wheels.
2. Tighten the lug nuts by hand.
3. Remove the jack stands and lower the Jeep to the ground.
4. Torque the lug nuts to the manufacturer's specifications.

Step 5: Get an Alignment

1. Take your Jeep to a qualified alignment shop to have the alignment checked and adjusted.

Maintaining Your New Control Arms

To keep your new Jeep Gladiator rear control arms in good condition, follow these maintenance tips:

• Regular Inspection: Inspect your control arms regularly for any signs of damage, such as cracks, bends, or worn-out bushings.
• Greasing: If your control arms have grease fittings, grease them regularly to keep the joints lubricated.
• Cleaning: Clean your control arms periodically to remove dirt and debris.
• Tightening Bolts: Check the torque of the control arm bolts periodically to ensure they are properly tightened.

Conclusion

Upgrading your Jeep Gladiator's rear control arms is a worthwhile investment for improving off-road performance, correcting suspension geometry, and enhancing durability. By understanding the different types of control arms, materials, and features available, you can choose the best option for your needs and driving style. Remember to follow proper installation procedures and maintain your control arms to ensure long-lasting performance. With the right rear control arms, your Jeep Gladiator will be ready to tackle any adventure you throw its way! So guys, get out there and enjoy the ride!