BD Diesel Big Stack Shaft & Drum Kit - 07.5-18 Dodge 6.7L 68RFE

BD Diesel is known for building tough drivetrain components, and this Big Stack Shaft & Drum Kit is no different. If you're looking to rebuild your 68RFE transmission in your 2011-2024 Ram 2500 or 3500, or your 2007-2010 Dodge Ram 2500 or 3500, this kit gives you the heavy-duty internals to handle more power.

This kit focuses on the overdrive shaft and input drum, areas critical for torque management. You get a big stack overdrive shaft with 16 overdrive friction surfaces, which offers a longer clutch engagement area. The kit also includes billet QT100 reaction plates and a Sonnax machined drum kit. This setup increases the input drum apply area by 16%, and the overall torque holding capacity by 54% compared to stock. With 33% more steel mass in the clutches, it can absorb more heat, which is crucial for transmissions working hard. The overdrive shaft splines are billet machined for added strength.

To complete the rebuild, you will need to source Raybestos B29308L / B29309L clutches, as they are not included in this specific kit. This kit is designed for seasoned builders who want to put BD's own performance transmission components into their rebuild. It comes with a 12-month warranty from BD Diesel.