3.73 Ratio Differential Ring and Pinion for 7.5 (Inch) (10 Bolt)

Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters. Made from first-run steel, never recycled material, Richmond ring and pinions handle the extreme torque from high horsepower engines. Extensive engineering, computer controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios available, make Richmond Gear the clear winner! Winners Run Richmond!

49-0046-1 Application Notes

  • For GM 7.5"/7.625" (10 Bolt), 7.6" IFS
  • 3.73 Ratio
  • 3.23 Ratio Carrier and Higher


2 Years or 100,000 Miles

49-0046-1 Specifications

Cover Bolt Quantity 10
Differential Carrier Break 3.23 and Higher
Differential Case Design Type GM 7.5, GM 7.6 IFS, GM 7.625
Pinion Gear Tooth Quantity 11
Pinion Shaft Diameter 1.438 (Inch)
Pinion Spline Count 27
Ring & Pinion Gear Ratio 3.73
Ring Gear Bolt Quantity 10
Ring Gear Diameter 7.5 (Inch)
Ring Gear Material 8620 Steel
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Taxonomy A Differential LD
Taxonomy B Ring and Pinion
Taxonomy C GM 7.5, GM 7.625, GM 7.6 IFS
Where to buy

Vehicle Applications

  • 2006 – 2010 Hummer H3
  • 2009 – 2010 Hummer H3T
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