Yukon Gear Adapter Sleeve for GM 11.5in/10.5in 14 Bolt Truck Yokes to use Triple Lip Pinion Seal

This adapter sleeve from Yukon Gear & Axle is what you get when you need to fit a triple lip pinion seal onto a GM 11.5-inch or 10.5-inch 14-bolt truck yoke. It's a straightforward piece designed to make that specific seal swap possible without needing to replace the entire yoke.

If you're working on a variety of GM trucks from different eras, like a classic C20 pickup or a more modern Express 2500 van, this sleeve helps ensure you can use a more robust triple lip seal. This type of seal is often preferred for its improved ability to keep grease in and contaminants out, especially in heavy-duty applications. The sleeve itself is well-built and designed to fit right onto the yoke, making the installation process smoother.

This adapter is a practical solution for differential rebuilds or repairs where you want to upgrade the pinion seal. Just be sure you have the correct triple lip pinion seal on hand to use with it.