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  3. LANDRUM PERFORMANCE SPRING 21-144SP

LANDRUM PERFORMANCE SPRING 21-144SP Mono Leaf 816759025528

21-144sp Landrum Performance Spring Mono-leaf

( Brand: Landrum Performance Spring ), ( Manufacturer Part Number: 21-144SP ), ( Part Type: Landrum Mono-leaf Spring ), ( Seller: Summit Racing Equipment ), ( UPC: 816759025528 )

Review LANDRUM PERFORMANCE SPRING Mono leaf

The Landrum Performance Spring, model number 21-144SP, is a mono-leaf spring designed to provide superior performance and handling for your vehicle. This spring is part of Landrum's high-performance line, which is engineered to deliver a balance of ride comfort and responsiveness that is ideal for enthusiasts who demand the very best from their suspension system.

This mono-leaf spring is manufactured using premium quality materials, including chrome silicon steel. The chrome silicon steel provides excellent strength and durability, ensuring that the spring can handle the rigors of high-performance driving. The spring rate of this particular model is not disclosed in the product number, but Landrum offers a range of spring rates to suit various vehicle applications and driving styles.

The design of this mono-leaf spring is unique in that it features a progressive rate design. This means that the spring rate increases as the spring deflects, providing a more controlled and consistent ride. Additionally, the spring features a tapered leaf design, which reduces unsprung weight and improves handling.

One of the key benefits of this mono-leaf spring is its ability to improve the ride and handling of your vehicle. By providing a more controlled and consistent ride, this spring can help reduce body roll and improve cornering ability. Additionally, it can help improve the overall stability of your vehicle, making it more responsive and agile.

Installation of this mono-leaf spring is relatively straightforward, as it is designed to fit directly into the factory location. However, it is recommended that installation be performed by a qualified professional to ensure proper alignment and setup. Landrum offers a range of installation hardware and accessories to make the installation process as smooth as possible.

In summary, the Landrum Performance Spring, model number 21-144SP, is a high-performance mono-leaf spring designed to provide superior ride comfort and handling for your vehicle. Manufactured using premium quality materials, this spring features a progressive rate design and tapered leaf shape to deliver a more controlled and consistent ride. With its easy installation and durable construction, this spring is an excellent choice for enthusiasts who demand the very best from their suspension system.

The Landrum Performance Spring 21-144SP mono-leaf spring is a popular aftermarket option for those looking to upgrade the suspension system in their classic cars. Here are some pros and cons to help you make an informed decision:

Pros:

1. Improved Handling: Mono-leaf springs provide better handling and road feel compared to stock or multi-leaf springs. They help maintain better wheel contact with the ground, reducing body roll and improving overall stability.

2. Adjustability: Landrum Performance springs are adjustable, allowing you to fine-tune the ride height and stiffness to suit your driving preferences.

3. Durability: The 21-144SP springs are made from high-quality materials, ensuring they can withstand the rigors of classic car use and provide long-lasting performance.

4. Fitment: These springs are designed to fit a wide range of classic cars, making them a versatile option for those restoring or upgrading their vehicles.

Cons:

1. Cost: Aftermarket suspension components like the Landrum Performance 21-144SP springs can be more expensive than stock parts.

2. Installation: Installing aftermarket suspension components can be a complex and time-consuming process. It may require specialized tools and knowledge, and improper installation could lead to premature failure or poor performance.

3. Ride Comfort: Mono-leaf springs can provide a stiffer ride than stock springs, which may not be desirable for those who prioritize comfort over handling.

4. Noise: Some users have reported increased noise from their suspension after installing mono-leaf springs. This could be due to the springs' thinner design or the way they interact with other suspension components.

Conclusion:

The Landrum Performance 21-144SP mono-leaf springs offer several advantages, including improved handling, adjustability, and durability. However, they come with some drawbacks, such as cost, installation complexity, potential ride comfort issues, and increased noise. Ultimately, whether or not these springs are right for you depends on your priorities, budget, and technical abilities. If you're looking for superior handling and are willing to invest in the installation process, these springs could be an excellent choice. On the other hand, if you prioritize comfort or are not confident in your installation abilities, you may want to consider other options.

Recommendation:

If you're considering the Landrum Performance 21-144SP mono-leaf springs, it's essential to weigh the pros and cons carefully and consider your driving preferences, budget, and technical abilities. It may also be helpful to consult with a suspension expert or professional mechanic to ensure proper installation and optimal performance. If you decide that these springs are the best choice for your classic car, be prepared for a potential learning curve during the installation process and the increased cost compared to stock parts. However, the improved handling and long-lasting performance may make the investment worthwhile.

Details:

Landrum Performance Spring 21-144SP Racing Springs, Rear Leaf, Black Powder coated, Each. Please hover mouse to image.

part #: 21144sp prices

  • $299.99-$350.80

specifications axlpar:

  • brand: Landrum Performance Spring
  • mpn: 21-144sp
  • part type: Landrum Mono-leaf Spring
  • seller: Summit Racing Equipment
  • upc: 816759025528

general axlpar:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Axle Housings Parts

shipping axlpar:

  • class: Economy
  • cost: $0.00
  • service: Economy
  • transit: 2-4 Days
  • type: Fixed

offer axlpar:

  • availability: In Stock
  • started: July 29, 2025
  • sold: 0
  • options: Ship-to-home

returns axlpar:

  • time: 60 Days
  • policy: Returns Accepted
  • paid by: Seller

seller axlpar:

  • city: Tallmadge, Ohio
  • # reviews: 1128373
  • rating: 98.7%

payments axlpar:

  • wallet: Apple-pay
  • credit card: Discover
  • other
part type: landrum mono-leaf spring, seller: summit racing equipment,
category: auto parts > car truck parts accessories > transmission drivetrain > axle housings parts, sku: 17035404949119693,
Landrum Performance Spring 21-144SP Is Similar To:
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5 offers $299.99–$350.80 USD
  • New. Offer #1 priced at $299.99 + $0.00 shipping estimate = $299.99* total. Landrum Performance Spring Racing Springs, Rear Leaf, Black Powdercoated, Each.FREE SHIPPING
  • New. Offer #2 priced at $299.99 + $0.00 shipping estimate = $299.99* total. Spring Rate. Parabolic Leaf Springs, Chevy Camaro Style, 6.5" True Arch, 200 Lb.FREE SHIPPING
  • New. Offer #3 priced at $350.80 + $0.00 shipping estimate = $350.80* total. If a defect is identified after this period, it will fall under the manufacturer's warranty and should be handled directly with them.FREE SHIPPING
  • New. Offer #4 priced at $326.17 + $0.00 shipping estimate = $326.17* total. Landrum Performance Springs holds its tolerance to 2% and we prove it with a dyno sheet with every spring.FREE SHIPPING
  • New. Offer #5 priced at $321.78 + $0.00 shipping estimate = $321.78* total. Leaf Spring - Mono-Leaf - 6.500 in Arch - 200 lb/in Spring Rate - 3100-3350 lb Car Weight - Steel - Black Paint - Chevy Camaro Style - Each.FREE SHIPPING

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