Motive Gear is a manufacturing industry leader in professional quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Motive Gear performance products can often be found in the winner's circle at NHRA, IHRA, ANDRA, SODA, SCORE, and NASCAR events.

Application: 1972-2013 GM 8.5" and 8.6" Rearend (will also fit 1980-1987 GM 8.5" corporate front end)

Technical Information

• Ratio: 4.56
• Compatible Carrier: 2.73-5.38
• Pinion Splines: 30
• Ring Gear Bolts: 10
• Rear Cover Bolts: 10
• Ring Gear Diameter: 8.5"