1/2-Inch Extruded Aluminum Leaf Spring Lowering Block: Universal Design for Ride Height Adjustments, 2.5 x 5 Inch, Ideal for Axle & Leaf Spring Configurations, Stronger Than Billet Material - Walmart.com
4 inch Leaf Spring Lift or Lowering Blocks 4" | eBay
Lowering Blocks (Pair)
3/4 Inch Aluminum Extruded Leaf Spring Lowering Block - Walmart.com