Riverside Gear
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Riverside Gear
612 Water
Eaton Rapids,MI 48827
Toll Free: 877-614-GEAR
Local: 517-663-4410

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Hours of Operation:
OPEN Monday-Friday 9:00 am - 4:00 pm EST, Saturday by appointment.

GM 8.5" 3.90 Ratio Ring and Pinion USA Standard Gear

8.5" and 8.6" 10 Bolt GM

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GM 8.5" 3.90 Ratio Ring and Pinion USA Standard Gear

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

Part No: RSG-8.5/8.6-3.90 USA

Price: $269.95
Sale Price: $205.00
In Stock

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