Jeep Wrangler JL Rubicon and Gladiator Dana 44 4.56-5.38 Ratio Gear Package

The Complete Drivetrain Overhaul for 37-Inch Tires and Up.

When building a Jeep Wrangler JL or Gladiator Rubicon for massive 38-inch or 40-inch tires, standard gearing simply isn't enough. The factory ratios leave your 8-speed transmission hunting for gears and your engine struggling to maintain highway speeds. Revolution Gear & Axle solves this with a comprehensive gear package, offering deep ratios up to 5.38 to restore torque and low-speed control to your heavy rig.

At Overland Truck Store, we recommend this "Master" package because it takes the headache out of parts sourcing. Instead of piecing together individual boxes, you get everything needed for a complete axle rebuild in one shipment: matched Front and Rear Ring & Pinions, plus the corresponding Master Install Kits.

Revolution’s "2-Cut" gears are heat-treated to endure the extreme stress of deep gearing. By upgrading to 5.13s or 5.38s, you drastically improve your crawl ratio, allowing you to navigate technical rock gardens with precision while reducing strain on your torque converter and engine.

Features & Specs:

• Application:

  • 2018-Current Jeep Wrangler JL Rubicon

  • 2020-Current Jeep Gladiator JT Rubicon

• Total Package: Includes Front Dana 44 (M210) & Rear Dana 44 (M220) Ring & Pinion sets.

• Master Overhaul: Includes complete Front and Rear Master Install Kits (Timken/Koyo bearings, seals, hardware, compound, and sealant).

• Deep Ratios: Available in 4.56, 4.88, 5.13, and 5.38 to support tire sizes from 35" up to 42".

• AdvanTEK Ready: Precision machined for the modern Dana axles found exclusively in Rubicon models.

Installer Note: This kit is specifically for the Rubicon M210/M220 axles. It will not fit Sport, Sahara, or Overland trims which use the smaller M186 front axle. Additionally, installing 5.38 gears requires careful break-in procedures to ensure long gear life; please follow the included break-in guide strictly.