fits year: 1984–1995.



( Brand: Gm ), ( Part Type: Bearing ), ( Manufacturer Part Number: 8646504 ), ( Country/region Of Manufacture: United States )
The GM 8646504 bearing, also known as THM 440-T4/4T60, is a crucial component for vehicles manufactured between 1984 and 1995. This specific bearing is designed for carrier or reactor applications within the 4T60 automatic transmission system.
The bearing itself is a high-quality, precision-engineered component, constructed from robust materials to ensure durability and reliability. It features a hardened steel raceway, which provides a smooth, frictionless surface for the shaft to rotate on, ensuring optimal performance and longevity. The bearing also incorporates a high-grade, corrosion-resistant seal, which helps protect against the ingress of contaminants and lubricant leakage, thereby maintaining the integrity of the transmission system.
The unique dimensions of the GM 8646504 bearing (outer diameter: 55.0mm, inner diameter: 43.5mm, width: 17.4mm) make it a perfect fit for the specific applications it serves in the 4T60 transmission. The bearing's superior design and manufacturing standards ensure a seamless fit, minimizing the risk of transmittal damage and maximizing the efficiency of the transmission system.
In summary, the GM 8646504 bearing is a vital component for 1984-1995 vehicles with 4T60 transmissions. Its hardened steel raceway, corrosion-resistant seal, and precise dimensions make it a reliable, high-performing choice for carrier or reactor applications. When replacing this bearing, it is crucial to choose a replacement that meets or exceeds the original equipment manufacturer's (OEM) specifications to ensure optimal performance and longevity for your vehicle.
Pros of buying GM 8646504 bearing THM 440-T4/4T60 (1984-1995 carrier/rear carrier):1. High quality: The GM 8646504 bearing is manufactured by a reputable company, ensuring it meets high-quality standards.
2. Wide compatibility: This bearing is compatible with various vehicles from 1984 to 1995, including Chevrolet, Oldsmobile, and Buick models using the THM 440-T4/4T60 transmission.
3. Easy installation: Replacing the bearing is relatively straightforward, saving you time and potential labor costs if you choose to install it yourself.
4. Long lifespan: A high-quality bearing like the GM 8646504 can last for thousands of miles, reducing the need for frequent replacements.
Cons of buying GM 8646504 bearing THM 440-T4/4T60 (1984-1995 carrier/rear carrier):1. Price: The cost of this bearing may be higher than some aftermarket alternatives, which could be a disadvantage for budget-conscious consumers.
2. Availability: While generally widely available, some local auto parts stores may not carry this specific part, requiring you to order it online or visit a specialist retailer.
3. Compatibility concerns: While the bearing is compatible with a wide range of vehicles, it's essential to double-check your vehicle's specifications to ensure it's the right fit.
Conclusion:The GM 8646504 bearing THM 440-T4/4T60 (1984-1995 carrier/rear carrier) is a high-quality, reliable option for replacing worn-out bearings in vehicles from this era. Its compatibility with various models, easy installation, and long lifespan make it an attractive choice for many vehicle owners. However, its cost and potential availability issues may deter some shoppers. Ultimately, the decision to purchase this bearing will depend on your vehicle's needs, your budget, and your preference for original equipment manufacturer (OEM) parts.
Recommendation:If you value high-quality components and prioritize a long-lasting solution for your vehicle, the GM 8646504 bearing THM 440-T4/4T60 (1984-1995 carrier/rear carrier) is an excellent choice. However, if cost is a primary concern, consider researching alternative aftermarket options to find a more affordable solution that still meets your vehicle's specifications.
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