Models with plastic bumpers require removal of the shield to mount 35" tires
Models with Sport/Overland and Rubicon fenders require installation of extensions/pads (4" for front and 3" for rear) to properly mount 37" and 38" tires
Requires the use of wheels with a 4.75" axle spacing
Models equipped with the EcoDiesel engine require 1" spring spacers, we recommend TX1155100 (sold separately)