The Fabtech round U-bolt kit secures rear leaf springs and is specified as 1/2-20 x 6.00 x 3.56 (listed as 3.5 in. x 6 in. x .5 in.). Intended to support lifted rear ends, this cost-effective kit is promoted as a simple solution to help lift the back of your truck and complete a suspension upgrade when paired with matching components.
Fabtech Round U-Bolt Kit - 1/2-20 x 6.00 x 3.56