SPEEDWAY MOTORS 57890 Leaf Spring Lowering Block Kit Bolts

( Brand: Speedway Motors ), ( Part Type: Spring Block Bolt Motor ), ( Manufacturer Part Number: 57890 ), ( California Prop 65 Warning: True )

Review SPEEDWAY MOTORS Universal Leaf Spring Lowering Block Kit Inch Drop U bolts And Hardware

The Speedway Motors 57890 Lowering Block Kit with U-Bolts is an essential upgrade for any hot rod or custom vehicle looking to achieve a lowered look while maintaining optimal suspension performance. This kit is compatible with various applications, including 1932-1954 Ford and Mercury cars, as well as 1946-1953 Ford pickups.

The heart of this kit consists of the precision-engineered lowering blocks. Crafted from high-quality steel, these blocks are designed to provide a consistent and controlled drop of approximately 1 to 1.5 inches. By shortening the distance between the axle and the chassis, this kit delivers an eye-catching and aggressive stance.

The inclusion of new U-bolts in the kit ensures a secure and reliable connection between the axle and the chassis after the lowering blocks have been installed. These U-bolts are specifically designed to work with the lowering blocks and provide the necessary strength and support to handle the increased loads and stresses that come with a lowered vehicle.

The kit also includes all necessary hardware, such as new mounting brackets, bushings, and nuts, to make the installation process as seamless as possible. Each component is meticulously manufactured to ensure a perfect fit and function, making this kit an excellent choice for discerning hot rodders and custom car enthusiasts.

Installing the Speedway Motors 57890 Lowering Block Kit with U-Bolts is a straightforward process, but it is recommended to consult the detailed instructions provided in the kit and seek professional assistance if necessary. The result is a lowered vehicle that not only looks great but also maintains proper handling and ride quality.

In summary, the Speedway Motors 57890 Lowering Block Kit with U-Bolts is an excellent investment for any hot rod or custom vehicle owner looking to achieve a lowered look while maintaining optimal suspension performance. This kit is meticulously engineered and manufactured to ensure a perfect fit, and it comes with all necessary components to make the installation process as simple and straightforward as possible.

The Speedway 57890 Leaf Spring Lowering Block Kit with U-Bolts is a popular aftermarket product designed to help lower the ride height of a vehicle by replacing the factory leaf spring blocks with shorter ones. Here are some potential pros and cons of purchasing this kit:

1. Lowers ride height: By using the shorter blocks, the vehicle's ride height can be lowered, which can improve the appearance of the vehicle and also provide better handling and stability.

2. Easy installation: The kit comes with everything needed for installation, including the blocks, U-bolts, and hardware. Many customers report that the installation process is straightforward and can be completed in a few hours.

3. Cost-effective: Compared to other methods of lowering a vehicle, such as coilovers or air suspension, the Speedway 57890 kit is a more affordable option.

4. Improved handling and stability: Lowering the ride height of the vehicle can improve its handling and stability, especially during cornering and high-speed driving.

1. Limited adjustability: The kit only comes with a set of pre-determined height blocks, so there is no adjustability once they are installed.

2. Potential ride quality trade-offs: Lowering the ride height of the vehicle can result in a stiffer ride, as the suspension will have less travel. Some customers report that this can lead to a less comfortable ride, especially on rough roads.

3. Potential clearance issues: Lowering the ride height of the vehicle can create clearance issues with larger tires or other undercar components. It's important to ensure that the vehicle's suspension and other components will still have adequate clearance after installation.

The Speedway 57890 Leaf Spring Lowering Block Kit with U-Bolts can be a cost-effective and straightforward way to lower the ride height of a vehicle and improve its handling and appearance. However, it's important to consider the potential trade-offs, such as limited adjustability, potential ride quality issues, and clearance concerns, before making a purchase. Ultimately, the decision to buy this kit depends on the individual's priorities and preferences.

If you are looking for an affordable and straightforward way to lower the ride height of your vehicle and improve its handling, the Speedway 57890 Leaf Spring Lowering Block Kit with U-Bolts may be a good option for you. However, it's important to carefully consider the potential cons and ensure that the kit will be compatible with your specific vehicle before making a purchase. Additionally, if you value adjustability or a more comfortable ride, you may want to consider other methods of lowering your vehicle, such as coilovers or air suspension.

Details:

U-bolts fit 3 diameter axle housings and are 10 long. Blocks are 2-1/2 wide x 5 long. Item MPN: 57890. Details Kit includes 2 extruded aluminum lowering blocks complete with four 1/2 U-bolts and hardware.

Item Brand: Speedway Motors.

part #: 57890 price

• $51.99

specifications lowerlageen:

• brand: Speedway Motors
• part type: Spring Block Bolt Motor
• manufacturer part number: 57890
• california prop 65 warning: True

payments lowerlageen:

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

general lowerlageen:

• condition: New
• Auto Permance Parts > Chassis, Suspension Brakes > Lower Kits Parts

returns lowerlageen:

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

offer lowerlageen:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: February 24, 2026

shipping lowerlageen:

• transit: 3-7 Days
• class: Economy, Expedited
• carrier: FedEx, UPS
• service: FedEx Ground Economy, UPS 2nd Day Air
• type: Fixed
• cost: $0.00

seller lowerlageen:

• # reviews: 321358
• city: Cass City, Michigan
• rating: 99.7%

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