3.08 Ratio Performance Differential Ring and Pinion for 8.5 (Inch) (10 Bolt)


Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Our gear sets are made from first-run steel, we never use recycled metal. This allows Motive Gear Performance ring and pinions to handle the extreme torque from high horsepower racing engines. Extensive engineering, computer controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios, makes Motive Gear Performance ring and pinions the clear winner! Engineered to the highest standards, every Motive Gear Performance product goes through rigid quality control processes in our in-house lab. Motive Gear Performance: What the pros run!

G885308 Application Notes

  • For GM 8.5"/8.625" (10 Bolt)
  • Performance Ring and Pinion
  • 3.08 Ratio
  • 2.73 Ratio Carrier and Higher


2 Years or 100,000 Miles

G885308 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 13
Pinion Shaft Diameter 1.626 (Inch)
Pinion Spline Count 30
Ring & Pinion Gear Ratio 3.08
Ring Gear Bolt Quantity 10
Ring Gear Diameter 8.5 (Inch)
Ring Gear Material 8620 Steel
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 40
Taxonomy A Differential LD
Taxonomy B Ring and Pinion
Taxonomy C GM 8.5, GM 8.625
Taxonomy D Both
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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