BD DIESEL 1062035 68RFE BIG STACK OVERDRIVE SHAFT & REACTION PLATES KIT DODGE RAM 2007.5-2022 6.7L CUMMINS

Product Description

The BD DIESEL 1062035 68RFE Big Stack Overdrive Shaft & Reaction Plates Kit is built for builders who want more torque holding capacity in the 68RFE without cutting corners. This kit uses technology derived from BD’s in-house 68RFE performance transmission program and is designed to deliver stronger overdrive clutch engagement through improved spline support and billet reaction plate strength.

BD Diesel 1062035, 68RFE big stack kit, 68RFE overdrive shaft, billet overdrive shaft spline, billet reaction plates, QT100 reaction plates, Dodge Ram 6.7 Cummins 68RFE rebuild, transmission upgrade kit, stronger overdrive clutch engagement

If you’re rebuilding a 68RFE for towing, heavy work, or higher power levels, the “Big Stack” approach increases mechanical torque holding capacity by improving clutch face engagement and reducing deflection under load. This is a high-impact upgrade for builders targeting long-term durability, consistent apply pressure, and stronger overdrive operation.

Fitment

• 2007.5–2022 Dodge Ram 2500/3500 — 6.7L Cummins — 68RFE Automatic

Build Note: Raybestos clutches (B29308L / B29309L) are required for the Big Stack configuration and are not included with this kit.

Cross-Reference / Compatible BD DIESEL Products

• BD DIESEL 1062036 68RFE BIG STACK OVERDRIVE SHAFT & DRUM KIT — 2007.5–2022 RAM 6.7L CUMMINS
• BD DIESEL 1062034 68RFE BILLET OVERDRIVE REACTION PLATES — 2007.5–2018 RAM 6.7L CUMMINS
• BD DIESEL 1064043 TRANSMISSION FILTER SERVICE KIT — 2007.5–2022 RAM 6.7L CUMMINS (68RFE)
• BD DIESEL 1600189 BILLET INPUT SHAFT — 2007.5–2018 RAM 6.7L CUMMINS (68RFE)
• BD DIESEL 1041221 6.7L CUMMINS FLEXPLATE — 2007.5–2018 RAM (68RFE)

FAQ

What does the “Big Stack” upgrade do for a 68RFE?

It’s designed to increase overdrive torque holding capacity by improving clutch engagement characteristics and reducing deflection under load using upgraded shaft spline support and billet reaction plates.

Is this kit intended for stock trucks or performance builds?

Both. It’s a strong upgrade for towing and work trucks, and it’s also commonly used when rebuilding a 68RFE for higher power levels where the overdrive section needs additional holding capacity.

Are clutches included with BD Diesel 1062035?

No. This kit requires specific Raybestos clutch part numbers (B29308L / B29309L) and those are not included here.

Specifications for BD DIESEL PRODUCTS 1062035