USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.90 Ratio

Manufacturer Part # : ZG GM12P-390

Product Description - Extended

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing.

Product Description - Short

• USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.90 Ratio
• Ring & Pinion Set

Features and Benefits

• Fits GM 12 bolt passenger car
• 8.875" ring gear diameter
• 12 ring gear bolts
• 30 spline pinion
• 3.90 ratio

AAIA Part Type Description

Differential Ring and Pinion

Label Description

72-64 BUI/CHV/PON

Product Description - Invoice

ZG GM12P-390