Jeep Wrangler TJ Differential Install Kit - Rear - Revolution Gear & Axle - Dana 44 Thick Timken 4.10 Ratio - `03-`06 is a direct-fit gear package for 2003–2006 TJ owners. This rear Dana 44 "thick" kit supplies the matched components needed to replace or upgrade your factory gears to a 4.10 final drive ratio.

Built for enthusiasts who maintain or modify older Wranglers, this Revolution Gear & Axle package is specified for the Dana 44 thick rear housing and uses Timken-style bearings where applicable. The matched 4.10 ring and pinion provide predictable ratio change for improved crawl and highway engine speed tradeoffs while keeping compatibility with TJ drivetrain components. This kit is intended for professional installation or experienced DIY installers; proper setup, bearing preload, and backlash adjustment are required for reliable operation.

Features

• Designed for 2003–2006 Jeep Wrangler TJ rear Dana 44 (thick housing)
• Matched 4.10 ring & pinion set for consistent gearing
• Includes Timken bearing hardware as specified by the manufacturer
• Direct-fit gear package meant for differential replacement or upgrade
• Ideal for builders who want a common ratio for off-road and street use

If you have questions about fitment, installation, or compatibility with your axle components, please call us directly. We offer installation and customization services at two shops: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) for advice, scheduling, or parts inquiries. If you are considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

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