S1386 GENUINE GM PARTS Differential Pinion Bearing

Review GENUINE GM PARTS Differential Pinion Bearing

The GM S1386 differential pinion bearing is an essential component in the power transmission system of vehicles equipped with a GM S10, S15, or S1500 series rear differential. This bearing supports the pinion shaft that connects the ring gear to the driveshaft, enabling the power from the engine to be transferred to the wheels.

The GM S1386 differential pinion bearing is designed with precision engineering to ensure a smooth and efficient transfer of power. It is manufactured using high-quality materials, such as steel for the outer race and brass for the inner race, ensuring durability and longevity. The bearing also features a pre-lubricated design, which means it comes with an ample supply of lubricant to reduce friction and wear during operation.

The GM S1386 differential pinion bearing is engineered to meet the demanding requirements of off-road and high-performance applications. It is built to handle the heavy loads and torque generated by these vehicles, making it an ideal choice for those who use their vehicles for towing, off-roading, or racing.

The bearing measures 3.25 inches in diameter and 3.375 inches in length, making it suitable for use in GM rear differentials with a pinion diameter of 1.25 inches. It is designed to fit snugly into the differential housing and is held in place by a retainer and a seal to prevent leakage of lubricant.

Installation of the GM S1386 differential pinion bearing is a straightforward process, but it requires careful attention to detail to ensure that it is correctly positioned and secured in place. Proper installation will help ensure the longevity and performance of the bearing.

In summary, the GM S1386 differential pinion bearing is a high-quality, durable component designed to support the power transmission system of GM rear differentials. Its precision engineering, high-quality materials, and pre-lubricated design make it an ideal choice for both everyday driving and demanding off-road applications. With proper installation, the GM S1386 differential pinion bearing will provide reliable and efficient power transfer, ensuring optimal performance and longevity for your vehicle.

Buying a GM S1386 differential pinion bearing involves replacing the bearing that supports the pinion shaft in the differential assembly. Here are some pros and cons of doing so.

1. Improved Drivetrain Performance: A worn-out or failing differential pinion bearing can negatively impact the performance of your vehicle's drivetrain. Replacing the bearing with a new one can help reduce vibrations, improve gear engagement, and ensure that power is being efficiently transferred to the wheels.

2. Preventing Further Damage: A failing differential pinion bearing can cause damage to other components in the drivetrain if not addressed promptly. By replacing the bearing, you can prevent further damage and potentially save yourself from more expensive repairs down the line.

3. Smoother Ride: A new differential pinion bearing can help provide a smoother ride by reducing the amount of play and noise coming from the differential. This can make for a more enjoyable driving experience.

4. Increased Safety: A faulty differential pinion bearing can cause the differential to seize up, which can lead to a loss of power and control while driving. Replacing the bearing can help ensure the safety of both the driver and passengers.

1. Cost: Replacing a differential pinion bearing can be an expensive repair. The cost of the bearing itself can range from $100 to $300, and labor costs can add significantly to the overall cost of the repair.

2. Time-Consuming: The process of replacing a differential pinion bearing can be time-consuming and requires specialized tools and knowledge. It may be necessary to remove the entire differential assembly from the vehicle to access the bearing, which can add to the length of the repair.

3. Potential for Additional Damage: During the repair process, there is a risk of damaging other components in the differential assembly if not handled carefully. This can add to the cost and time of the repair.

The decision to replace a GM S1386 differential pinion bearing depends on the current condition of the bearing and the overall condition of the vehicle. If the bearing is showing signs of failure, such as excessive noise or vibration, it is recommended to replace it as soon as possible to prevent further damage and ensure the safety and performance of the vehicle. However, the cost and time-consuming nature of the repair should be taken into consideration before making a decision.

If you are experiencing issues with your vehicle's differential, it is recommended to have it inspected by a qualified mechanic to determine the cause of the problem. They can help diagnose whether the issue is with the differential pinion bearing or another component and provide an accurate estimate of the cost and time required for the repair. If the issue is with the differential pinion bearing, it may be worth considering the long-term benefits of the repair, such as improved performance and safety, before making a decision.

Details:

Part numbers. Orders ship from 20 major metropolitan markets in the us. Soft fork is a distributor of new and remanufactured auto truck parts. Manufacturer warranty.

This part fits vehicles made in the following years 2011 ,2012,2013,2014,2015,2016,2017,2018,2019.

specifications differentialsdepo:

• brand: Genuine Gm Parts
• mpn: S1386
• warranty: 1 Year
• type: Differential Pinion Bearing
• upc: 707773682227

payments differentialsdepo:

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

general differentialsdepo:

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

seller differentialsdepo:

• # reviews: 8578
• city: port washington, new york
• rating: 98.2%

shipping differentialsdepo:

• type: fixed
• class: standard
• transit: 4-7 days
• service: standard

returns differentialsdepo:

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

offer differentialsdepo:

• prices: $45.00–$84.48
• item condition: New
• availability: in stock
• sold #: 19
• in stock #: 5
• started: march 20, 2025
• options: ship-to-home