Revolution Gear & Axle D30JK-JL-488R 4.88 Ring & Pinion for 07-18 Jeep Wrangler

Vehicle Fitment

• 2007-2018 Jeep Wrangler JK (Front Dana 30, Non-Rubicon) 4WD
• 2018+ Jeep Wrangler JL (Front Dana 30, Non-Rubicon) - fitment beyond 2018 should be verified

Features

• 4.88 gear ratio for enhanced torque and off-road performance
• Reverse rotation design tailored for front Dana 30 on JK/JL Non-Rubicon models
• Constructed from premium 8620 alloy steel for exceptional durability
• Precision-machined gear set ensures smooth operation and minimal noise
• Backed by a warranty (typically 2 years) for manufacturer defects
• Ideal for both stock and modified (lifted) front Dana 30 axles in JK/JL
• Very effective for drivers towing, off-roading, or seeking stronger front end gear performance
• Kit includes all necessary components for ring & pinion replacement - see included components below

Specifications

• Axle: Dana 30 front (JK/JL Non-Rubicon) as indicated by manufacturer and catalog listings
• Gear ratio: 4.88
• Rotation: Reverse
• Material: 8620 alloy steel
• Pinion splines: 26 (as specified in user-listings)
• Ring gear diameter: approx. 7.2"
• Cover bolts: either 10-bolt or 12-bolt pattern depending on axle version

Included Components

• 1x Ring gear
• 1x Pinion gear
• 1x Pinion bearing or bearing set (depending on kit variant)
• 1x Ring gear bolts set
• Seals/hardware as required for Dana 30 front axle installation

Product Description

The Revolution Gear & Axle D30JK-JL-488R ring and pinion set is engineered for the front Dana 30 axle of the Jeep Wrangler JK and early JL Non-Rubicon models. With a 4.88 ratio and reverse rotation, this high-performance gear set delivers a significant boost in torque delivery and driveline responsiveness - particularly beneficial for off-road driving, heavy hauling, or larger-tire setups.

Built from premium 8620 alloy steel and precision machined to exacting specifications, the D30JK-JL-488R offers robust durability and long-lasting reliability. The reverse rotation configuration is specifically designed for front Dana 30 axles in these vehicles, helping ensure correct gear engagement and performance.

Fitment is listed for 2007-2018 Jeep Wrangler JK and 2018+ Jeep Wrangler JL equipped with a front Dana 30 axle. Always verify your vehicle uses the Dana 30 front axle and check current gear ratio before purchase. Coverage for model years beyond 2018 and up to 2025 may vary and should be confirmed with the manufacturer.