4.88 Ratio Differential Ring and Pinion for 7.125 (Inch) (10 Bolt)

Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers prefer our ring and pinions for easy setup, superior strength, quality, and our vast ratio selection. Motive Gear produces the industry’s widest range of OEM replacement ring and pinions. Engineered to the highest standards, every Motive Gear product goes through rigid quality control processes in our in-house lab. In combination with Motive Gear’s performance and axle divisions: Motive Gear Performance and TEN Factory, there simply isn’t a better value in drivetrain components.

D30-488RJK Application Notes

  • For Dana 30
  • 4.88 Ratio
  • 3.73 Ratio Carrier and Higher


1 Year or 50,000 Miles

D30-488RJK Specifications

Cover Bolt Quantity 10
Differential Carrier Break 3.73 and Higher
Differential Case Design Type Dana 30
Pinion Gear Tooth Quantity 8
Pinion Shaft Diameter 1.376 (Inch)
Pinion Spline Count 24
Ring & Pinion Gear Ratio 4.88
Ring Gear Bolt Quantity 10
Ring Gear Diameter 7.125 (Inch)
Ring Gear Material 8620 Steel
Ring Gear Rotation Reverse
Ring Gear Tooth Quantity 39
Taxonomy A Differential LD
Taxonomy B Ring and Pinion
Taxonomy C Dana 30 JK Reverse, Dana 30 JL
Taxonomy D Front
Where to buy

Vehicle Applications

  • 2007 – 2011 Dodge Nitro
  • 2008 – 2012 Jeep Liberty
  • 2007 – 2020 Jeep Wrangler
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