3.42 Ratio Differential Ring and Pinion for 8.5 (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.

GM10-342A Application Notes

  • For GM 8.5"/8.625" (10 Bolt)
  • 3.42 Ratio
  • 2.73 Ratio Carrier and Higher

Warranty

1 Year or 50,000 Miles

GM10-342A Specifications

Cover Bolt Quantity 10
Differential Carrier Break 2.73 and Higher
Differential Case Design Type GM 8.5, GM 8.625
Pinion Gear Tooth Quantity 12
Pinion Shaft Diameter 1.626 (Inch)
Pinion Spline Count 30
Ring & Pinion Gear Ratio 3.42
Ring Gear Bolt Quantity 10
Ring Gear Diameter 8.5 (Inch)
Ring Gear Material 8620 Steel
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Where to buy

Vehicle Applications

  • 1977 – 1986 Chevrolet K20
  • 1977 – 1986 Chevrolet K20 Suburban
  • 1987 Chevrolet V20
  • 1987 – 1988 Chevrolet V20 Suburban
  • 1989 – 1991 Chevrolet V2500 Suburban
  • 1987 GMC V2500
  • 1987 – 1991 GMC V2500 Suburban
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