Stage 4 Re-Gear Kit, 4.11 Ratio

The Yukon Gear YGK072STG4 is a comprehensive Stage 4 re-gear kit engineered for Jeep JL models. This package is designed to upgrade the front Dana 30/M186 and rear Dana 35/M200 differentials, featuring a 4.11 gear ratio and 24 spline pinion gears. The kit's "Stage 4" designation signifies its robust content, aiming to improve both durability and performance for off-road applications. Included in this kit are front and rear Yukon Hardcore Nodular Iron Diff Covers, which offer superior protection. Complementing these are 4340 chromoly front and rear axle kits, known for their increased strength and resistance to torsional stress. The package also contains Master Overhaul installation kits, ensuring proper and complete installation of the new ring and pinion sets. This combination of components provides an opportunity to enhance traction by implementing a more aggressive gear ratio suitable for larger tire sizes or demanding terrain. The "Fitment Notes" indicate that this kit is specifically for the Dana 30 (186mm) front and Dana 35 (200mm) rear differentials, including the 4.11 ratio ring and pinion sets, master overhaul kits, diff covers, and 4340 axle kits. It is explicitly stated to fit the JL Non-Rubicon M200 Rear and M186 Front configurations. Some sources mention "No Fitment Data" and advise manual verification, however, the provided notes are specific to the Dana 30/35 axles and JL Non-Rubicon configurations.