Motive Gear
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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
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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
Upgrade your GM 8.5/8.625 differential with this precision-engineered 3.90 ratio ring and pinion set built from high-quality 8620 steel for excellent performance and durability.
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
Item #: 144251865

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,

Item #: 144251865

SCR 3839

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Upgrade your GM 8.5/8.625 differential with this precision-engineered 3.90 ratio ring and pinion set built from high-quality 8620 steel for excellent performance and durability.
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What Stands Out

Precision Engineering
Crafted with high-quality materials for enhanced durability, this differential ring and pinion set ensures reliable performance, allowing vehicles to handle power more efficiently and with greater precision.
Compatible Fit
Designed specifically for GM 8.5 and 8.625 differentials, it offers an optimal fit for various models, including Chevrolet and GMC, making installation straightforward and hassle-free.
Ideal Gear Ratio
The 3.90 gear ratio strikes a perfect balance between power and efficiency, enhancing acceleration and fuel economy, making this set ideal for performance enthusiasts and daily drivers alike.

Product Details

Shop 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 online at a best price in Seychelles. B001CQQ9R4
Item Weight12 lbs (5.44 kg)

Who Should Buy?

Suitable For
  • Performance Enthusiasts

    Ideal for users wanting improved acceleration and performance in their GM vehicles during racing or spirited driving.

  • Heavy Towing

    Users who frequently tow heavy loads will benefit from higher gear ratios, enhancing power delivery and control.

  • Restoration Projects

    Perfect for hobbyists restoring classic Chevy or GMC models needing reliable and period-correct differential components.

Not Suitable For
  • Daily Commuters

    Not suitable for users who prioritize fuel efficiency and quiet operation over performance enhancements in daily driving.

  • Budget Builders

    Those with strict budgets might find this product expensive compared to more economical alternatives for basic installations.

  • Non-GM Vehicles

    Users with vehicles outside the specified GM models will find this ring and pinion set incompatible and ineffective.

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

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What vehicles are compatible with the Motive Gear GM10-390 Differential Ring and Pinion Set?

    Answer: The Motive Gear GM10-390 Differential Ring and Pinion Set is designed to fit GM 8.5" and 8.625" differentials, specifically for Chevrolet, GMC, Cadillac, and Buick vehicles. This compatibility makes it an excellent choice for individuals wanting to enhance their vehicle's performance. If you’re looking to upgrade your truck or SUV, this product will provide a reliable solution for improved power delivery and traction.
  • Question: Why should I consider a 3.90 gear ratio for my vehicle?

    Answer: Choosing a 3.90 gear ratio strikes a balance between acceleration and fuel efficiency. It allows for quicker starts and improved towing capabilities, making it ideal for trucks and SUVs used for heavy-duty tasks. If you're often hauling loads or participating in off-road activities, this gear ratio will help optimize your vehicle's performance, giving you the power when you need it.
  • Question: How does upgrading to a new differential set enhance my vehicle's performance?

    Answer: Upgrading to a new differential set like the Motive Gear GM10-390 can significantly improve traction, handling, and overall performance. A fresh gear set reduces slippage and enhances power transfer from the engine to the wheels, resulting in smoother acceleration and better stability during heavy towing or off-road conditions. This makes it a worthwhile investment for off-road enthusiasts and drivers seeking enhanced control.
  • Question: Can I install the Motive Gear GM10-390 myself, or should I seek professional help?

    Answer: While some experienced enthusiasts may attempt a DIY installation, it is generally recommended to have the Motive Gear GM10-390 installed by a professional mechanic. Proper installation is crucial to ensure the gear set operates smoothly and at peak performance. A knowledgeable technician will ensure correct alignment and torque specifications, which can prevent future issues and ensure reliability.
  • Question: What materials are used in the Motive Gear GM10-390 set, and how do they affect longevity?

    Answer: The Motive Gear GM10-390 Differential Ring and Pinion Set is constructed from high-quality, durable steel, providing excellent strength and resilience under heavy loads. This material choice significantly enhances the longevity of the gear set, allowing it to withstand the stresses from high-torque applications, which is particularly important for performance vehicles and those used in demanding conditions.
  • Question: What is the purpose of using a ring and pinion set in a differential?

    Answer: A ring and pinion set is essential for transferring power from the driveshaft to the wheels in a vehicle's differential. It enables the conversion of rotational motion into the drive motion needed for the wheels to turn. The configuration of these gears also dictates the gear ratio, impacting acceleration and speed. Upgrading this set can optimize engine power delivery for specific driving needs.
  • Question: What kind of maintenance is required for a differential after installing the GM10-390 set?

    Answer: Regular maintenance for a differential with the GM10-390 set includes checking and changing the gear oil. Keeping the differential lubricated is crucial to prevent wear and ensure smooth operation. It is also advisable to inspect for leaks or unusual noises periodically. Proper maintenance extends the lifespan of your differential and ensures your vehicle maintains optimal performance.
  • Question: How does the Motive Gear GM10-390 compare to OEM gear sets?

    Answer: The Motive Gear GM10-390 Differential Ring and Pinion Set typically provides enhanced performance over standard OEM gear sets. They are designed with improved materials and machining techniques that cater to higher performance needs, which can result in better power delivery and durability. For enthusiasts and heavy-duty users, these upgrades are often preferred for the performance benefits they provide.
  • Question: Where can I buy the Motive Gear GM10-390 Differential Ring and Pinion Set?

    Answer: You can purchase the Motive Gear GM10-390 Differential Ring and Pinion Set at Ubuy in Seychelles. Ubuy offers a convenient online shopping experience, ensuring you can access this quality automotive part quickly and efficiently. Whether you're upgrading your vehicle or performing maintenance, you’ll find the necessary products to enhance your driving experience at Ubuy.

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SCR 3839

Order now and get it around Friday, July 10

QTY:

Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

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Fastest cross-border delivery

Features & Benefits

  • Precision-engineered for optimal performance.
  • Durable 8620 steel construction ensures longevity.
  • 3.90 gear ratio boosts torque distribution and acceleration.
  • Compatible with a wide range of GM vehicles.
  • Heat-treated for reduced noise and extended lifespan.
  • Backed by a 1-year/50,000 miles warranty.