Shop Dodge Ram 3500 Pickup Transmission For Sale & Dodge Ram 3500 Pickup Automatic Transmission Parts Catalog Replace Dodge Ram 3500 Pickup Transmissions. Maintaining the transmission in your Dodge Ram 3500 Pickup is crucial for its longevity; regular fluid changes and avoiding heavy towing beyond its capacity can prevent premature wear. If you notice slipping gears or a delay in acceleration, it's a clear sign that your transmission may require replacement. When selecting a new transmission, consider the robust Aisin six-speed for heavy-duty applications or the 68RFE six-speed that offers a balance of performance and efficiency. Each transmission is engineered with high-quality materials to withstand rigorous demands. Ensure proper installation by following the manufacturer's guidelines, utilizing the right tools, and choosing a reputable online retailer for a seamless purchase and reliable delivery of your new transmission.