Automotive > Transmission & Drive Train > Differential Rings & Pinions

Motive Gear GM10-390 Differential Ring and Pinion Set 3.90 Gear Ratio Fits GM 8.5" & 8.625" Fits for Chevrolet, GMC, Cadillac, Buick, Pontiac, Oldsmobile Replaces 2020954, 49-0034-1, YG GM8.5-390

Product ID: B001CQQ9R4 Condition: New

Selected Option: 39-10 Teeth, 3.9 Ratio

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$ 1,034

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Delivery: 10-20 working days

Ships from USA warehouse.

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Product Description

Motive Gear GM10-390 Differential Ring and Pinion Set 3.90 Gear Ratio Fits GM 8.5" & 8.625" Fits for Chevrolet, GMC, Cadillac, Buick, Pontiac, Oldsmobile Replaces 2020954, 49-0034-1, YG GM8.5-390

✅ Optimized 3.90 Gear Ratio – Enhances acceleration, towing capacity, and overall performance for GM vehicles.
✅ Durable 8620 Steel Construction – High-strength material ensures longevity and superior power transfer.
✅ Precision Machined for Smooth Operation – Heat-treated for reduced noise, efficiency, and seamless gear engagement.
✅ Direct Fit for GM 8.5" & 8.625" Differentials – Compatible with Chevrolet, GMC, Cadillac, Buick, and more.
✅ OEM Quality & 1-Year Warranty – Designed to meet or exceed factory specifications with a 1-year / 50,000-mile warranty.

Motive Gear Ring and Pinion Engineered. A division of Midwest Truck and Auto Parts, Motive Gear offers the highest quality drivetrain components on the market today. With a broader line of ring and pinion gears than any other aftermarket manufacturer, Motive Gear is the number one choice for distributors world-wide. More than just ring and pinion gears and differential bearing kits, Motive Gear offers a complete line of transmission parts and transfer case parts as well as replacement axle shafts. Along with Motive Gear's performance and axle divisions; Motive Gear Performance and TEN Factory, there simply isn't a better value in drivetrain components.