GM12P-390 YUKON GEAR AXLE Spline Pinion Ring Set Bolt Gm

Review YUKON GEAR AXLE And 3.90 Ratio 30 Spline Pinion Ring Set For Gm Bolt for GM 2012

Introducing the Yukon Gear & Axle GM12P-390 3.90 30 Spline Pinion Ring Set, a premium solution for enhancing the performance and durability of your GM 12-bolt rear end. This pinion ring set is engineered to exacting specifications to provide a perfect fit and exceptional strength.

The heart of this setup is the 3.90 ratio, which delivers an optimal balance between torque and RPM for a wide range of applications. The pinion ring itself is manufactured from high-strength, heat-treated steel for maximum durability and longevity. Its 30 spline design ensures a strong connection to the pinion shaft, reducing the risk of slippage and providing increased power transfer.

The Yukon GM12P-390 pinion ring set is specifically designed for GM 12-bolt rear ends and is an excellent choice for applications that demand high performance and reliability. Its precision-machined surface ensures a perfect fit and smooth engagement with the ring gear, while its robust construction can handle the rigors of off-road driving or towing.

This pinion ring set comes complete with all necessary hardware for a straightforward installation, and Yukon's commitment to quality means that you can trust this component to perform consistently and reliably, mile after mile. Whether you're building a high-performance race vehicle or simply looking to upgrade the components of your daily driver, the Yukon Gear & Axle GM12P-390 3.90 30 Spline Pinion Ring Set is an excellent choice.

In summary, the Yukon Gear & Axle GM12P-390 3.90 30 Spline Pinion Ring Set is a top-quality, performance-enhancing component for your GM 12-bolt rear end. Its 3.90 ratio, 30 spline design, and high-strength steel construction make it an ideal choice for those who demand the very best in terms of power transfer, durability, and reliability.

Pros and Cons of Buying Yukon Gear Axle GM12P-390 3.90 30 Spline Pinion Ring Set for GM 12 Bolt Differential

The Yukon Gear Axle GM12P-390 3.90 30 Spline Pinion Ring Set is an aftermarket upgrade for the GM 12 bolt differential. This product aims to improve the durability and performance of the differential assembly. In this article, we will discuss the potential advantages and disadvantages of purchasing this pinion ring set.

1. Enhanced durability: The 30 spline design offers increased strength compared to the stock 28 spline setup, reducing the risk of failure under heavy loads.

2. Improved torque capacity: With a 3.90 gear ratio, this pinion ring set enhances the vehicle's towing and hauling capabilities, making it a popular choice among off-road enthusiasts.

3. Better traction: The increased torque capacity also results in improved traction, especially in challenging off-road conditions.

4. Reduced vibration: The use of high-quality materials and precision manufacturing helps minimize vibration and noise, resulting in a smoother driving experience.

5. Easy installation: The pinion ring set comes with clear instructions and is relatively simple to install, making it an accessible upgrade for the average DIY enthusiast.

1. Cost: The Yukon Gear Axle GM12P-390 3.90 30 Spline Pinion Ring Set is a premium aftermarket product, and the price tag may be a significant barrier for some buyers.

2. Compatibility: This pinion ring set is specifically designed for GM 12 bolt differentials, and it may not be compatible with other types of differentials. It's essential to ensure that the part fits your vehicle before making a purchase.

3. Potential noise: While the use of high-quality materials minimizes vibration, some users have reported increased noise levels after installing this pinion ring set.

4. Requires additional parts: To install the pinion ring set, some users may need to purchase additional parts, such as new seals or bearings, which can add to the overall cost.

The Yukon Gear Axle GM12P-390 3.90 30 Spline Pinion Ring Set offers several advantages, including enhanced durability, improved torque capacity, better traction, and reduced vibration. However, it also comes with some disadvantages, such as its premium cost, potential compatibility issues, and potential noise increases.

If you frequently tow heavy loads, off-road, or simply want to improve your vehicle's performance, the Yukon Gear Axle GM12P-390 3.90 30 Spline Pinion Ring Set can be a worthwhile investment. However, it's essential to weigh the advantages and disadvantages, consider your budget, and ensure compatibility before making a purchase. If you're unsure, consulting a professional mechanic or off-road specialist can help you make an informed decision.

Details:

Made from 8620 steel. Quiet running Gear sets. Yukon Gear Axle 3.90 ratio 30 spline pinion ring and pinion set for Gm 12 bolt: 1 year warranty.

specifications differentialsdepo:

• for makes: Gm
• for years: 2012
• brand: Yukon Gear Axle
• mpn: Gm12p-390
• part type: Pinion Ring Bolt
• model number: Yg Gm12p-390
• unit count: 1.0
• upc: 883584241256
• package dimensions lxwxh: 15.8x11.39x5.4 Inches
• weight: 16.8 Pounds

shipping differentialsdepo:

• transit: 3-5 days
• type: fixed
• carrier: ups
• class: standard
• service: ups ground

offer differentialsdepo:

• availability: in stock
• in stock #: 5
• options: ship-to-home
• started: may 3, 2026
• sold #: 9
• prices: $390.99–$565.89
• item condition: New

returns differentialsdepo:

• time: 30 days
• policy: returns accepted
• paid by: seller

general differentialsdepo:

• category: Auto Parts > Transmission Drivetrain > Differentials, Assemblies > Additional

seller differentialsdepo:

• rating: 97.3%
• city: phoenix, az
• # reviews: 294

payments differentialsdepo:

• wallet: apple-pay
• credit card: mastercard
• other