RICHMOND 12BC373 Excel Ring and Pinion Gear Set for GM 12-Bolt, 3.73 Ratio

The RICHMOND Excel 12BC373 ring and pinion gear set is designed for a GM 12-bolt differential with a 3.73:1 gear ratio. This set provides a matched ring-and-pinion configuration for applications using the specified GM 12-bolt drivetrain.

The pinion features a 30-spline design, while the ring gear is identified as a 4-series thin gear for an 8.875-inch differential. These details make the set suitable for builds requiring the listed gear series, spline count, and differential size.

Use the RICHMOND part number 12BC373 to help verify the correct gear set for your application before installation. Confirm differential specifications, gear-series requirements, and pinion spline compatibility to ensure proper selection.

Features:

• Brand: RICHMOND
• Part Number: 12BC373
• Application: GM 12-bolt differential
• Gear Ratio: 3.73:1
• Pinion Spline Count: 30 spline
• Gear Series: 4 series
• Gear Type: Thin gear
• Differential Size: 8.875 inches