PRO COMP 90-3957 Rear Leaf Spring Spacers 5/16

( Brand: Pro Comp ), ( Manufacturer Part Number: 90-3957 ), ( Items Included: Spacer ), ( Type: Leaf Spring Spacers ), ( Features: 100 Accuracy Of Fit ), ( Placement On Vehicle: Rear )

Review PRO COMP 5/16 Inch Rear Leaf Spring Spacers fits SILVERADO SIERRA 1500 1999–2018

Introducing the Pro Comp 90-3957 5/16 Rear Leaf Spring Spacers, specially designed for the 1999-2018 Silverado and Sierra 1500 models. These high-performance spacers are an excellent addition to any off-road or heavy-duty application, enhancing both the performance and the aesthetic appeal of your vehicle.

Crafted from robust, durable materials, these spacers are engineered to provide additional clearance between the rear leaf springs and the chassis. This added space accommodates larger and more aggressive tires, enabling superior ground clearance and improved suspension articulation.

The Pro Comp 90-3957 spacers boast a 5/16 inch thickness, ensuring optimal fitment and compatibility with various suspension setups. These spacers are a perfect solution for those seeking to upgrade their stock suspension system or to prepare their vehicle for more demanding off-road conditions.

Installation of these spacers is a straightforward process. They can be easily installed without the need for extensive modifications or professional assistance. Simply replace the stock spacers with these upgraded ones, and enjoy the benefits of enhanced performance and improved ride quality.

These Pro Comp rear leaf spring spacers are not only functional but also visually appealing. Their sleek design complements the rugged look of your Silverado or Sierra 1500, making them an excellent choice for those who take pride in their vehicle's appearance.

In summary, the Pro Comp 90-3957 5/16 Rear Leaf Spring Spacers are a must-have accessory for any Silverado or Sierra 1500 owner looking to upgrade their off-road capabilities or prepare their vehicle for heavy-duty applications. With their robust design, easy installation, and aesthetic appeal, these spacers are an excellent investment for any enthusiast seeking to enhance their vehicle's performance and appearance.

Buying Pro Comp 90-3957 5/16 rear leaf spring spacers for a 1999-2018 Silverado Sierra 1500 can have both advantages and disadvantages depending on your specific needs and preferences. Here are some potential pros and cons:

1. Increased Ground Clearance: Installing these spacers can provide extra ground clearance, which can be beneficial for off-roading or for dealing with rough roads.

2. Improved Ride Quality: The added clearance can also help improve ride quality by reducing the amount of leaf spring articulation, which can lead to a smoother ride.

3. Enhanced Load Capacity: These spacers can help increase the load capacity of the rear suspension by providing more leverage for the springs, making it easier to carry heavier loads.

1. Cost: Pro Comp spacers can be more expensive than other aftermarket options or stock springs.

2. Installation Complexity: Installing these spacers can be a more complex process than installing other aftermarket springs or leveling kits, as it requires the removal of the rear axle and the use of specialized tools.

3. Potential for Noise: Some users have reported increased noise from the rear end after installing these spacers, which can be a drawback for those looking for a quieter ride.

In conclusion, the decision to buy Pro Comp 90-3957 5/16 rear leaf spring spacers for a 1999-2018 Silverado Sierra 1500 depends on your specific needs and priorities. If you prioritize Ground clearance, improved ride quality, and increased load capacity, these spacers could be a good investment for you. However, if you are concerned about cost, installation complexity, or potential noise, other aftermarket options or leveling kits may be a better fit for your vehicle. Ultimately, it's important to weigh the pros and cons carefully and consider consulting with a professional mechanic or off-road expert before making a final decision.

Recommendation: If you decide that Pro Comp 90-3957 5/16 rear leaf spring spacers are the right choice for your 1999-2018 Silverado Sierra 1500, make sure to follow proper installation procedures and use the appropriate tools to ensure a successful and safe installation. Additionally, consider purchasing these spacers from a reputable dealer or retailer to ensure their authenticity and quality.

Details:

Sierra 1500 1999 -2018. Helps reduce axle wrap. Silverado 1500 1999 -2018. We typically respond within 24 hours.

Fitment Guide. Heavy duty steel. Each spacer is 5/16 thick. No hardware included, spacers only.

part #: 903957 price

• $24.99

specifications coilspringi:

• for models: 1500, Silverado, Sierra
• for years: 1999-2018
• brand: Pro Comp
• mpn: 90-3957
• items included: Spacer
• type: Leaf Spring Spacers
• features: 100 Accuracy Of Fit
• placement on vehicle: Rear

payments coilspringi:

• other
• credit card: Mastercard
• wallet: Apple-pay

returns coilspringi:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

general coilspringi:

• condition: New
• Car Truck Parts Accessories > Steering Suspension > Leaf Coil Springs

offer coilspringi:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: February 3, 2026

seller coilspringi:

• rating: 99.8%
• # reviews: 5913
• city: North Branch, Minnesota

shipping coilspringi:

• service: USPS Ground Advantage
• carrier: USPS
• cost: $0.00
• type: Fixed
• transit: 2-6 Days
• class: Standard

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