ASIN VS 68RFE TRANSMISSIONS

Aisin Transmission (AS68RC/AS69RC)

Manufacturer: Aisin Seiki Co., Ltd. (Japanese company)

Applications: Primarily found in Ram 2500, 3500, 4500, and 5500 heavy-duty trucks, often paired with the Cummins diesel engine.

Strengths:

High Torque Capacity: Designed to handle the massive torque output of heavy-duty diesel engines. Can handle significantly more torque than the 68RFE.

Durability and Reliability: Known for its robust construction and ability to withstand tough conditions, making it ideal for heavy towing and hauling.

Towing Capacity: Contributes significantly to Ram trucks' impressive towing capabilities.

Efficiency: Generally considered more efficient than the 68RFE, potentially leading to better fuel economy.

Multiple Modes: Offers various driving modes (Normal, Tow/Haul, Snow, Custom) to optimize performance for different situations.

Weaknesses:

Cost: Typically more expensive than the 68RFE.

Shift Feel: Some drivers find the Aisin's shifts to be less smooth or more "commercial-like" compared to the 68RFE.

Availability: Not available in all Ram models.

68RFE Transmission

Manufacturer: Chrysler (now Stellantis)

Applications: Found in various Ram trucks, including some heavy-duty models.

Strengths:

Reliability: Has a solid track record for reliability and durability, especially in stock or lightly modified applications.

Smooth Shifting: Generally provides smoother shifts compared to the Aisin.

Affordability: More cost-effective than the Aisin transmission.

Aftermarket Support: Extensive aftermarket support for upgrades and performance enhancements.

Weaknesses:

Lower Torque Capacity: Not designed to handle the extreme torque of heavily modified engines or the heaviest towing loads.

Fewer Gears: Typically a 6-speed transmission, while some newer Aisin transmissions have more gears for improved efficiency and performance.

Less Efficient: Generally less fuel-efficient than the Aisin.

Which is better?

It depends on your needs and priorities:

Choose the Aisin if: You prioritize maximum towing capacity, durability, and efficiency, and you're willing to pay more for it.

Choose the 68RFE if: You need a reliable and capable transmission for everyday driving and moderate towing, and you prefer a smoother shifting experience.

Important

Note: Both transmissions have been updated and improved over the years. It's always a good idea to research the specific model year and configuration of the truck you're interested in to get the most accurate information about its transmission.