USA Standard ring & pinion sets are the right choice when price is a factor and quality is essential. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a lower cost alternative to other manufacturers when price must be kept low. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

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

Technical Information

• Ratio: 3.90
• Compatible Carrier: 2.73-5.38
• Pinion Splines: 30
• Ring Gear Bolts: 10
• Rear Cover Bolts: 10
• Ring Gear Diameter: 8.5"