Drivetrain› Differentials and Rear-End Components
Revolution Gear & Axle
JK Non-Rubicon 5.38 Ratio Gear Package (D44-D30) with Timken Bearings (Front Carrier Required When Upgrading From Factory 3.21 Ratio Only) Revolution Gear and Axle
SKU: R01K REV-JK-NON-538
Moderate — 2–4 hours
Description
Fitment
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Specifications
| Brand | Revolution Gear & Axle |
| Part Number | R01K REV-JK-NON-538 |
Videos
What GEARS Did I Install in My Jeep Wrangler? 4.88 or 5.13's?
RE-GEARING Your Jeep Wrangler or Gladiator and Everything You Need to Know About It
Don't ReGear Your Jeep Until YOU Watch This Video! Wrangler & JT 2018+
Best Gear Ratio For Running 37's On The Jeep Wrangler JK (4.88 vs 5.13) | Inside Line
Regearing the Jeep JK with Ian Johnson
Don't Regear Your Jeep Until YOU Watch This Video!
The Dana 30 and Dana 44 comparison on Differential Size and Shape
DANA 30 BROKEN RING GEAR - WRANGLER on 37inch TIRES | JEEP JK VLOG
Jeep Wrangler TJ Dana 30 Axle Build Part 4: Setting the Gears (part 1)
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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