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Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block

Speedway Aluminum Extruded Leaf Spring Lowering Block

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86 Reviews | 26 Answered Questions
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Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
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Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
Speedway Aluminum Extruded Leaf Spring Lowering Block
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Part # 91643
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  • Lightweight extruded aluminum lowering blocks are stronger than billet and can withstand even the harshest environments
  • Universal design can be used in a variety of applications where a 2.5" wide x 5" long block is sufficient
  • Use to lower the ride height on leaf spring suspensions where the axle sits on top of the spring
  • Also can be used to raise ride height on leaf spring suspensions with the axle is below the spring
  • Increase or decrease suspension height on most leaf spring applications

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MFG. Part #:
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Info

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

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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Videos & Articles
  • Learn how to lower a hot rod by modifying the axles and some history behind early hop ups. This project features a Ford axle with wishbones for a Model A.
  • Looking for a cost effective way to upgrade the front of your car? This article shows the steps to replace upper and lower stock control arms with tubular control arms for added suspension strength.
  • This article guides you through the process of repairing and painting a subframe for a 1967 Poncho Firebird. See how the front suspension gets an overhaul including new G-comp spindles and a disc brake kit.

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