Description

This Motive Gear G888390 3.90 Ratio Ring & Pinion is for GM 12 Bolt 8.875 1955-56 and 1964-73 12 Bolt rearends. These ring and pinions can handle the extreme torque from high horsepower racing engines, and are perfect for dedicated racing or off-road vehicles!

Motives extensive engineering, computer-controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios make Motive Gear Performance ring and pinions the clear winner!

Motive Gear G888390 GM 12 Bolt 8.875 Ring & Pinion Features:

• Fits 1955-56 and 1964-73 12 bolt rearends
• 3.90:1 Gear Ratio
• 2 Year/100,000 Mile Warranty
• Ring Gear Teeth: 39
• Pinion Gear Teeth: 10
• Pinion Spline Count: 30
• Pinion Shaft Diameter: 1.625
• Manufactured from 8620 Steel

Note:Designed to fit 3.07:1 to 3.73:1 ratio carrier

Engineered to the highest standards, every Motive Gear Performance product goes through rigid quality control processes in our in-house lab.

Motive Gear Performance: What the Pros run!