4.10 Ratio Differential Ring and Pinon Front and Rear Complete Kit for 7.125 Front (Inch), 8.875 Rear (Inch) (10 Front, 12 Rear)

Motive Gear makes it easy to re-gear your 4x4! Motive Gear complete front and rear differential kit includes: front and rear ring and pinions, plus front and rear bearing kits. Everything you need when changing tire size on your off-road vehicle.

MGK-128 Application Notes

  • For Dana 30 and AMC 20 - Ring and Pinions Including Timken Bearing Kits
  • 4.10 Ratio
  • Fits 3.73 and Higher Carrier Front
  • Fits 3.08 and Higher Carrier Rear


1 Year or 50,000 Miles

MGK-128 Specifications

Cover Bolt Quantity 10 Front, 12 Rear
Differential Carrier Break 3.73 and Higher Front, 3.08 and Higher Rear
Differential Case Design Type AMC 20, Dana 30
Pinion Gear Tooth Quantity 10
Pinion Shaft Diameter 1.376 Front (Inch), 1.625 Rear (Inch)
Pinion Spline Count 26 Front, 28 Rear
Ring & Pinion Gear Ratio 4.10
Ring Gear Bolt Quantity 10 Front, 8 Rear
Ring Gear Diameter 7.125 Front (Inch), 8.875 Rear (Inch)
Ring Gear Material 8620 Steel
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Taxonomy A Differential LD
Taxonomy B Ring and Pinion Gear Packages
Taxonomy D Both
Where to buy

Vehicle Applications

  • 1976 – 1983 Jeep CJ5
  • 1976 – 1986 Jeep CJ7
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