USA STANDARD GEAR
More Information for USA STANDARD GEAR ZGGM85
{Alternate Inventory Numbers: GM8.5-538, GM8.5-411, GM8.5-308, GM8.5-373, GM8.5-513, GM8.5-342, GM8.5-488, GM8.5-430, GM8.5-273, GM8.5-390, GM8.5-456, ZGGM85273, ZGGM85308, ZGGM85323, ZGGM85342, ZGGM85373, ZGGM85390, ZGGM85411, ZGGM85430, ZGGM85456, ZGGM85488, ZGGM85513, ZGGM85538, USA24495 }
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USA STANDARD GEAR ZGGM85  
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Choose Gear Ratio:
  •  
  • 3.42 Gear Ratio ($191.79) Warehouse
  • 4.56 Gear Ratio ($191.79) Warehouse
  • 3.73 Gear Ratio ($192.79) Warehouse
  • 4.11 Gear Ratio ($192.79) Warehouse
  • 4.88 Gear Ratio ($197.79) Warehouse
  • 5.13 Gear Ratio ($197.79) Warehouse
  • 3.08 Gear Ratio ($231.79) Warehouse
  • 5.38 Gear Ratio ($239.79) Warehouse
  • 3.90 Gear Ratio ($273.79) Warehouse
  • 2.73 Gear Ratio ($306.79) Warehouse
  • 4.30 Gear Ratio ($376.99) Warehouse
USA STANDARD GEAR ZGGM85close
Part image
Ring Gear Diam: 8.5"; Diff Cover Bolts: 10; Ring Gear Bolts: 10; Pinion Splines: 30
Features & Benefits:
  • Fits GM 8.5" and 8.6"
  • Ring & Pinion Kit
  • 2.73 ratio
  • 8.50" ring gear diameter
  • 30 spline pinion
  • GM 8.5"
  • 10 ring gear bolts
  • Rear
  • 3.08 ratio
  • 3.23 ratio
  • 3.42 ratio
  • 3.73 ratio
  • 3.90 ratio
  • 4.11 ratio
  • 4.30 ratio
  • 4.56 ratio
  • 4.88 ratio
  • 5.13 ratio
  • 5.38 ratio
  • Engineered for the Harshest Conditions
  • All Yukon ring & pinion sets come standard with a one-year warranty.
  • Reverse Rotation
USA Standard Gear Technical Support

If you are having trouble choosing the correct USA Standard Gear part, or experiencing issues during or after installation of this part, USA Standard Gear's technicians are available to help answer your questions.

Phone: 1-866-748-0902 (M-F 6am-4pm PST)


OEM / Interchange Numbers: 2019328, 2020642, 2020954, 2023695, 2023698, 2023701, 2023704, 2023707, 690175, 6901751, GM10308, GM10373A, GM10390, GM10411A, GM10430, GM10456A, GM1085456, GM85410, GM85557NG

USA STANDARD GEAR Warranty Information:
12 Months
Warranty Details