Rubicon Express RE1230 3.25" x 8" x 9/16" U-Bolt Kit Rubicon Express RE1230 U-Bolt Kit; 3.25 in. X 8 in.; Incl. 4 U-Bolts/Nuts; For Axle Tubes w/3.25 in. Diam.; Authorized Dealer - 100% Satisfaction Guaranteed Rubicon Express RE1230 Warranty: Yes