Product Description Extruded aluminum lowering blocks are 2-1/2" wide and 5" long U-bolts fit 4" diameter axle housings and are 10" long to fit a variety of applications U bolts are a premium steel construction and are zinc plated for corrosion resistance Drops the ride height on vehicles with the axle mounted on top of the leaf springs Specs Material Type：Aluminum Sold in Quantity： Kit Notes： U bolt is 10" x 4". Thread Pitch： 1/2"-20 Overall Height ： 4.00inch Overall Width： 2.50 Overall Length： 5.00 .
