Superior Material: Lightweight extruded aluminum lowering blocks that are stronger than billet, designed to withstand even the harshest environments., Universal Design: Featuring a universal 2.5\" wide x 5\" long block design, these lowering blocks can be used in a variety of applications to adjust the ride height of your leaf spring vehicle., Adjustable Ride Height: These blocks can increase or decrease suspension height on most leaf spring applications, allowing you to lower your leaf spring vehicle by up to 4 inches., Comprehensive Thickness Options: Available in multiple thickness options, from 1/4\" to 4\" thick, to cater to your specific needs for suspension adjustments., Ease of Installation: The lowering blocks feature a 9/16\" centering pin for precision and ease of installation. Heavy Aluminum 2 Inch Extruded Leaf Spring Lowering Block Sku # 91643-200 Mfr. Part # 91643-200 Condition New Brand Speedway Motors Sold Each Details
Our lightweight extruded aluminum lowering blocks are stronger than billet! Available in several heights, all 2-1/2" wide, 5" long. The centering pin is 9/16". These blocks will increase or decrease suspension height on most leaf spring applications and can be installed below the leaf spring to raise the vehicle or on top of the leaf spring to lower the vehicle. These lowering blocks allow you to lower your leaf spring vehicle by up to 4 inches. Heavy Duty U-bolts and hardware are available separately.
- Lightweight aluminum lowering blocks are stronger than billet
- 2-1/2" wide
- 5" long
- 9/16" centering pin
- Increase or decrease suspension height on most leaf spring applications
- Allows you to lower your leaf spring vehicle by up to 4 inches
- U-bolts and hardware available separately
Lowering blocks are sold individually (each).
THICKNESS options explained:
- 025 = 1/4" thick
- 050 = 1/2" thick
- 075 = 3/4" thick
- 100 = 1" thick
- 150 = 1.5" thick
- 200 = 2" thick
- 250 = 2.5" thick
- 300 = 3" thick
- 350 = 3.5" thick
- 400 = 4" thick
Specs MFG. Part # 91643-200 Sold in Quantity Each Overall Length 5.00" Overall Width 2.50" Overall Height 2.00" Pin Diameter .5625" Material Type Aluminum Finish Natural Suspension Height Adjustment 0.0-4.0 Inch Lowered Reviews I would buy again Rated by Rat rod on August 03, 2026
Summary: Exactly what I needed very nice quality
Yes, I recommend this product.
Strong Aluminum: better than other iron ones Rated by Dave on June 02, 2026
Summary: Fit was strong and direct The lifts lowered the truck to a good hieght for fast turns and furious getaways.
Yes, I recommend this product.
Worked largely as advertised Rated by TH on June 02, 2026
Summary: Used with mono-leaf on 1967 Camaro. Had to reduce size (diameter) of tab on bottom to fit into hole on top of leaf spring. Once that was done, seemed to work fine.
Yes, I recommend this product.
Yes I would buy it again. Rated by Shaun on December 10, 2025
Summary: Great fit for my project.
Yes, I recommend this product.
Used it for leveling Rated by Abe on November 21, 2025
Summary: I actually used this as a leveling block for a sagging rear leaf spring. Worked perfectly
Yes, I recommend this product.
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