USA STANDARD GEAR
More Information for USA STANDARD GEAR ZGGM12P
{Alternate Inventory Numbers: GM12P-373-4, GM12P-355, GM12P-411T, GM12P-390, USA-24571, GM12P-373, USA-24448, ZGGM12P342, ZGGM12P355, ZGGM12P373, ZGGM12P3734, ZGGM12P390, ZGGM12P411, ZGGM12P411T, ZGGM12P456, USA24450, USA24452, USA24453, USA24454, USA24455, USA24457 }
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USA STANDARD GEAR ZGGM12P  
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Choose Gear Ratio:
  •  
  • 3.73 Gear Ratio ($231.79) Warehouse
  • 3.90 Gear Ratio ($231.79) Warehouse
  • 3.55 Gear Ratio ($232.79) Warehouse
  • 4.11 Thick Gear for 3.73 & Down Carriers ($281.89) Warehouse
  • 3.08 Gear Ratio ($347.79) Warehouse
  • 3.31 Gear Ratio ($347.79) Warehouse
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USA STANDARD GEAR ZGGM12P Specifications
Cover Bolt Quantity12
Mounting Hardware IncludedNo
Ring Gear Diam: 8.875"; Diff Cover Bolts: 12; Ring Gear Bolts: 12; Pinion Splines: 30
Features & Benefits:
  • Fits GM 12 bolt passenger car
  • 8.875" ring gear diameter
  • 30 spline pinion
  • 12 ring gear bolts
  • 3.42 ratio
  • 3.55 ratio
  • 3.73 ratio
  • 3.90 ratio
  • 4.11 ratio
  • Thick gear for 3.90 and down carrier
  • Thin gear for 4.10 and up carrier
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)



Attention California Customers - Not Applicable

OEM / Interchange Numbers: 10001331, 10001411, 12BC342, 12BC355, 12BC373, 12BC373T, 12BC410, 12BC410T, 12BC456, 2023893, 2023896, 2023899, 2023902, 2023905, 2023908, 490094, 4900941, 690033, 6900351, 6903061, 690378, G888342, G888355, G888373T, G888390, G888430, G888456, GM12P308NG, GM12P411TNG, GM12P513, GM12P538

USA STANDARD GEAR Warranty Information:
12 Months
Warranty Details