7 Best Rear Suspension Control Arms (Researched and Compared)

Upgrading your rear suspension control arms can dramatically improve handling, reduce wheel hop, and extend tire life. We researched and compared seven top options based on manufacturer specifications, industry standards, and aggregated owner feedback. Our evaluation focuses on build quality, bushing design, adjustability, and real-world durability to help you choose the right set for your driving needs.

1. Moog RK620669 Rear Control Arm: Best Overall

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In our evaluation of rear suspension control arms, the Moog RK620669 stands out as the best overall choice for most drivers. Based on manufacturer specs and owner feedback, this arm offers a direct OEM replacement with pre-greased bushings that minimize noise and vibration. The corrosion-resistant coating has held up well in salt-belt regions according to community reports. It is ideal for daily drivers and light trucks seeking a reliable, no-hassle upgrade.

However, this arm is not adjustable, so it may not suit enthusiasts needing fine-tuned alignment settings. If you are building a dedicated track car or require camber correction, consider an adjustable alternative. For the vast majority of vehicles, this Moog arm delivers proven durability and performance without breaking the bank.

• Factory-style design ensures easy installation without modifications
• Pre-greased and sealed bushings reduce maintenance and extend life
• Corrosion-resistant coating evaluated to industry standards

Pros: Excellent value for the price; Easy bolt-on installation; Reliable OEM replacement quality
Cons: Not adjustable for camber or toe

2. SPC Performance 67520 Rear Control Arm: Best Adjustable

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For those needing adjustability, the SPC Performance 67520 rear control arm is a top-tier choice. We compared its design to industry standards and found the eccentric adjuster provides a wide range of camber and toe correction, which is essential for lowered vehicles or aftermarket suspension setups. Owner feedback highlights the quiet bushing and robust zinc plating that withstands harsh conditions.

That said, the premium price may deter budget-conscious buyers. Also, some users noted that the adjustment bolt can seize if not periodically greased. If you require precise alignment control and are willing to invest in quality, this arm is a strong performer. Skip it if you need a simple, cost-effective fixed arm.

• Eccentric adjuster allows precise camber and toe settings
• Zinc-plated steel resists rust and wear
• OE-style bushing for quiet operation

Pros: Fine-tuning capability for alignment; High-quality construction; Easy adjustment with common tools
Cons: Higher price point than fixed arms

3. Mevotech Supreme MS25225 Rear Control Arm: Best Value

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The Mevotech Supreme MS25225 offers the best value in our researched comparison. Based on spec sheets and user reviews, it delivers reliable performance at a lower cost than many competitors. The powder-coated finish helps prevent rust, and the greasable bushings allow owners to extend the arm’s lifespan with routine maintenance. It is a popular choice for budget-minded DIYers and fleet operators.

However, some owners report that the bushings can become noisy after extended use, especially in harsh climates. If you prioritize longevity over initial savings, a sealed bushing design might be better. But for a dependable, low-cost replacement, the Mevotech Supreme is hard to beat.

• Powder-coated finish for corrosion resistance
• Greasable bushings allow periodic lubrication
• Meets or exceeds OE specifications

Pros: Affordable price point; Greasable bushings extend service life; Solid build quality for the cost
Cons: Bushings may wear faster than premium brands; Not adjustable

4. Dorman 520-312 Rear Control Arm: Best OE Replacement

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Dorman’s 520-312 rear control arm is a solid OE replacement option. In our evaluation, we noted that it closely matches factory specs, making it a straightforward choice for restoring stock handling. The pre-installed bushings save time, and the e-coat finish offers decent rust resistance for most environments. It is a popular pick among owners who want a reliable part without extra features.

On the downside, the non-greasable bushings may wear out faster under heavy use, and the arm lacks adjustability. If you drive mostly on paved roads and want a simple fix, this arm works well. Enthusiasts or those with lifted vehicles should look elsewhere for more robust construction.

• Engineered to match original equipment design
• Pre-installed bushings reduce installation time
• E-coat finish provides basic corrosion protection

Pros: Affordable and widely available; Simple bolt-on installation; Good for restoring factory ride quality
Cons: Bushings are not greasable; May not handle aggressive driving well

5. ACDelco Professional 45G1167 Rear Control Arm: Best for GM Vehicles

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The ACDelco Professional 45G1167 is tailored for General Motors vehicles, especially trucks and SUVs. We compared its specs to OEM parts and found it meets strict tolerances. The zinc dichromate plating offers good corrosion protection, and the included hardware is a nice touch for DIYers. Owner feedback often praises the precise fit and restored ride quality.

However, this arm is not a universal option, so it only suits GM owners. Some users note that the bushings feel stiff for the first few hundred miles, which can cause a slightly harsher ride initially. If you drive a compatible GM model and want a direct OEM replacement, this is a reliable choice. Otherwise, skip it.

• Engineered for specific GM models
• Zinc dichromate plating resists corrosion
• Includes mounting hardware

Pros: Perfect fit for GM trucks and SUVs; Quality control from a trusted brand; Hardware included simplifies installation
Cons: Limited to GM applications; Bushings can be stiff initially

6. Energy Suspension 4.3110G Rear Control Arm Bushing Kit: Best Bushing Upgrade

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For those looking to upgrade bushings rather than replace the entire arm, the Energy Suspension 4.3110G kit is a top performer. We evaluated it based on material specs and owner feedback, and the polyurethane design greatly reduces suspension deflection, improving traction and control. The greaseable fittings help prolong bushing life.

However, this is a bushing-only kit, so it requires removing the original bushings, which can be labor-intensive without a press. Additionally, polyurethane transmits more road noise and vibration than rubber. If you prioritize handling and are willing to accept a firmer ride, this kit delivers. It is not recommended for those seeking a quiet, compliant daily driver.

• High-durometer polyurethane for reduced deflection
• Greaseable design with zerk fittings
• Improves handling and feedback

Pros: Significantly reduces wheel hop; Long-lasting material; Can be used with existing arms
Cons: Installation requires pressing out old bushings; Can increase NVH (noise, vibration, harshness)

7. Proforged 105-1018 Rear Control Arm: Best Heavy Duty

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The Proforged 105-1018 is built for heavy-duty applications. In our comparison, its forged steel design stood out for strength, making it ideal for trucks, off-road vehicles, or those that tow frequently. The greasable bushings and powder coat add to its longevity. Owner reviews consistently praise its ability to handle abuse without failure.

That said, the added weight may slightly affect ride quality, and the price is higher than many competitors. If you do not need extreme durability, a lighter option may be more suitable. But for demanding conditions, this arm is a reliable workhorse.

• Forged steel construction for maximum strength
• Greasable bushings with zerk fittings
• Powder-coated finish for durability

Pros: Extremely durable for off-road or towing; Easy to lubricate; Precise fitment reported by users
Cons: Heavier than aluminum alternatives; Higher cost

Frequently Asked Questions

What does a rear suspension control arm do?

A rear control arm connects the rear axle or wheel hub to the vehicle’s frame. It controls the wheel’s vertical motion and maintains proper alignment angles. Worn arms can cause clunking noises, uneven tire wear, and poor handling.

How do I know if my rear control arm needs replacement?

Common signs include a loose or wandering rear end, clunking sounds over bumps, uneven tire wear on the inner or outer edges, and a noticeable decline in ride comfort. A visual inspection may reveal cracked or deteriorated bushings.

Can I replace just the bushings instead of the whole arm?

Yes, if the metal arm is still in good shape, you can press out old bushings and install new ones. However, this requires specialized tools. Many owners opt for complete arms for easier installation and to ensure all components are fresh.

Do I need an adjustable control arm?

Adjustable arms are useful if you have lowered or lifted your vehicle, or if you require precise camber/toe correction after suspension modifications. For stock-height vehicles, fixed arms are typically sufficient and more cost-effective.

How often should control arms be replaced?

There is no set interval; replacement depends on wear and driving conditions. Many factory arms last 80,000 to 100,000 miles. Off-road use, heavy loads, or harsh climates can shorten lifespan. Inspect bushings and ball joints during routine maintenance.

Our Verdict

After researching specifications, industry standards, and owner feedback, the Moog RK620669 earns our top pick for its blend of durability, value, and ease of installation. For those needing alignment adjustability, the SPC Performance 67520 is an excellent runner-up. Choose based on your vehicle’s needs and your driving style.