3R03-400 – Transmission Yokes – 3R Series – 31/32 X 1.391 Splines – 1.886″ Hub Dia

3R03-400 is a Transmission Yoke designed specifically for GM transmissions, ensuring a secure connection for reliable torque transfer. This yoke is compatible with a variety of GM applications, including the Turbo 400 (TH400) long tailshaft, 6L50, 6L80E, 4L80E long tail, and GM transfer cases like the 241C. Before installation, check the spline count and diameter—this yoke features 31/32 X 1.391 splines, which are critical for proper engagement.

When installing the 3R03-400, pay close attention to the hub diameter of 1.886 inches and the center U joint to end measurement of 8.000 inches. These dimensions are essential for ensuring that the yoke fits correctly with the mating components. A common mistake is misaligning the spline engagement; always verify that the splines are clean and free of debris before sliding the yoke onto the output shaft. For a secure fit, this yoke uses an inside snap ring style for attachment, which adds an extra layer of security during operation.

• Check spline count: 31/32 X 1.391
• Hub diameter: 1.886 inches
• Center U joint to end: 8.000 inches
• Compatible with GM#7838665 applications
• Inspect for wear on mating components

With the 3R03-400, you can expect a robust connection that handles the demands of high-performance and heavy-duty applications. Ensure proper installation to maximize the lifespan and performance of your driveline.