WORLD AMERICAN A39664-1 Differential Ring Pinion Rd 698231615232 A-39664-1 4.88 RD/RP23

( Brand: World American ), ( Manufacturer Part Number: A39664-1 ), ( Part Type: Ring Pinion ), ( Ipn: A-39664-1 ), ( UPC: 698231615232 )

Review WORLD AMERICAN Differential Ring And Pinion 4.88 Ratio For Rd/rp23

Introducing the American Axle A39664-1 Differential Ring Pinion Gear Set, specifically designed for Ford Ranger models with 4.88 rear axle ratios from the years 1993 to 2011 (RD and RP23 series). This precision engineered component is an essential part of your vehicle's drivetrain, responsible for transmitting torque from the differential to the wheels, thereby enhancing your vehicle's performance and fuel efficiency.

The A39664-1 Differential Ring Pinion Gear Set is manufactured using high-strength steel, ensuring durability and resistance to wear and tear even under heavy loads. The ring gear teeth are precisely machined to ensure accurate engagement with the pinion gear, enabling smooth power transfer and reducing vibrations. The pinion gear, on the other hand, is designed with a robust helix angle, enhancing the torque multiplication effect and improving the overall performance of your vehicle.

This differential ring pinion gear set is engineered to meet OEM specifications, ensuring a perfect fit and seamless integration with your existing drivetrain components. Installing the A39664-1 Differential Ring Pinion Gear Set is a straightforward process, making it an ideal upgrade for DIY enthusiasts or those looking to save on labor costs.

With the A39664-1 Differential Ring Pinion Gear Set, you can expect improved acceleration, enhanced fuel efficiency, and a more responsive driving experience. By upgrading this critical component, you'll not only be investing in your vehicle's performance but also extending its lifespan and reliability.

In summary, the American Axle A39664-1 Differential Ring Pinion Gear Set is a high-quality, durable, and precise upgrade for your Ford Ranger's drivetrain. Designed to meet OEM specifications, this gear set delivers improved acceleration, enhanced fuel efficiency, and a more responsive driving experience. Upgrade today and unlock the full potential of your vehicle.

The American Axle A39664-1 differential ring and pinion set is a popular choice for those looking to upgrade the drivetrain of their RD/RP23 series vehicles. Here are some pros and cons to consider before making a purchase.

1. Increased Gear Ratio: The 4.88 gear ratio provided by this ring and pinion set offers better acceleration and towing capacity compared to the stock ratio.

2. Durability: American Axle is known for manufacturing high-quality drivetrain components, and this ring and pinion set is no exception. It is designed to handle the heavy loads and rough conditions often encountered in off-road driving.

3. Improved Traction: The increased gear ratio and stronger drivetrain components help provide better traction, especially in slippery or uneven terrain.

1. Cost: The American Axle A39664-1 ring and pinion set is more expensive than the stock differential and pinion set. This may be a consideration for those on a tight budget.

2. Installation Complexity: Installing this ring and pinion set requires some technical expertise and specialized tools. It is not a DIY job for the average vehicle owner.

3. Noise: Some users have reported increased noise levels after installing this ring and pinion set, especially during hard acceleration or when driving over rough terrain.

The American Axle A39664-1 ring and pinion set offers improved performance, durability, and traction for RD/RP23 series vehicles. However, it comes at a higher cost and requires technical expertise for installation. If you are an off-road enthusiast looking for better performance and durability, this differential upgrade may be worth the investment. If you are on a tight budget or not comfortable with the installation process, it may be best to stick with the stock differential and pinion set.

Details:

Designed specifically for trucks, trailers, and buses. Made of high-quality components for durability, reliability, and performance. Engineered using the latest technology to ensure product lasts longer in service. Manufactured following strict OE standards to work like the original component.

World American A39664-1 Differential Ring And Pinion 4.88 Ratio, For Rd/Rp23 160: Part Number: Manufacturer: WORLD AMERICAN. Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle.

part #: a396641 price

• $854.20

specifications othellodrivetrain:

• brand: World American
• mpn: A39664-1
• part type: Ring Pinion
• ipn: A-39664-1
• upc: 698231615232

shipping othellodrivetrain:

• type: Fixed
• transit: 3-7 Days
• class: Standard
• service: Standard
• cost: $0.00

general othellodrivetrain:

• Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain
• condition: New

payments othellodrivetrain:

• wallet: Paypal
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• credit card: Discover

seller othellodrivetrain:

• rating: 99.1%
• city: Los Angeles, California
• # reviews: 63286

returns othellodrivetrain:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer othellodrivetrain:

• options: Ship-to-home
• started: January 20, 2026
• sold: 0
• availability: In Stock
• quantity: 4
• best offers: True

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