This 5.13 ratio ring and pinion gear set fits 03-06 Jeep Wrangler Rubicons with Dana 44 front and rear axles. Uses ten 7/16 inch ring gear bolts. These affordable high strength gear sets come in all the popular ratios to satisfy everyone's gearing needs. Oversized tires require higher ring and pinion ratios to restore performance. Made from high quality 8620 forgings and Gleason gear cutting technology, these gears are made to last. Complete installation kits are available separately to complete the job. Exclusive 5-year warranty.