RICHMOND
More Information for RICHMOND GM85
{Alternate Inventory Numbers: GM85373, GM85308, GM85342, GM85456, GM85410}
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RICHMOND GM85  
Choose Gear Ratio Below
Price
Core
Pack
Total
Choose Gear Ratio:
  •  
  • 3.42 ($157.79) Warehouse
  • 3.73 ($157.79) Warehouse
  • 4.56 ($157.79) Warehouse
  • 4.10 ($170.79) Warehouse
  • 3.08 ($178.79) Warehouse
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RICHMOND GM85 Specifications
Cover Bolt Quantity10
Differential Carrier Break2.73 Ratio and Higher
Pinion Gear Tooth Quantity13
Pinion Shaft Diameter (IN)1.626
Pinion Spline Count30
Ring & Pinion Gear Ratio3.08
Ring Gear Bolt Quantity10
Ring Gear Diameter (IN)8.5
Ring Gear Material8620 Steel
Ring Gear RotationStandard
Ring Gear Tooth Quantity40
EXCel
Excel's broad line of original equipment automotive and light truck/SUV replacement ring and pinions offer Richmond's high OEM quality at affordable prices.

Features & Benefits:
  • EXCel gears are made from reclaimed 8620 steel for strength and durability
  • Featuring easier installation and setup
  • Central contact pattern on ring & pinions for longer lasting gear sets
  • Computer controlled heat treating for increased durability
Differential Identification Guide

To order the correct ring & pinion, it's crucial to know the differential type and gear ratio on your vehicle.
  • First, determine your Differential Type.
  • Next, determine the gear ratio on your vehicle using one of the following methods:
    • Count The Teeth: Divide the number of teeth on the ring gear (big gear) by the number of teeth on the pinion gear (small gear). If you have 37 teeth on your ring gear and 12 teeth on your pinion gear, you have a 3.08 Gear Ratio (37 ÷ 12 = 3.08).
    • Verify Through A Dealer: Verify the ratio using your VIN number. This will only be accurate if the differential has not been previously modified.
    Additional Resources

    Installation Instructions

    Attention California Customers - Cancer and Reproductive Harm - www.P65Warnings.ca.gov

OEM / Interchange Numbers: 26037712, 26066706

RICHMOND Warranty Information:
12 Months