ATS 314-940-3224 4R100 Intermediate Assembly | 1999-2003 Ford F250/F350 7.3L Powerstroke

Features:

• Built for drag racing and sled pulling
• 21% increase in shaft diameter
• 1.198 inch diameter intermediate shaft
• Made from ultra-strong 300M alloy steel
• 4140 HTSR billet steel forward drum
• Cast and Teflon sealing rings included
• Dual bushing support for added stability
• Intermediate shaft support made from billet
• Supports high torque diesel applications
• Ideal for extreme performance builds
• Precision engineered for 4R100 transmissions
• Compatible with 1999-2003 Powerstroke trucks

Push Your Powerstroke Harder Without Looking Back

If you're the kind of driver who demands more from your 1999-2003 Ford F250 or F350 7.3L Powerstroke, the ATS 4R100 Intermediate Assembly is built with you in mind. Whether you’re lining up at the drag strip or hooking up for a sled pull, this assembly is designed to take abuse that would leave factory components shattered. With a massive 1.198 inch diameter intermediate shaft, you’re getting a 21 percent increase in size over stock, and that kind of upgrade translates into serious strength where it counts. It’s made from 300M alloy steel, a material known for its use in aerospace and motorsports where failure isn’t an option. When your truck needs to handle high horsepower launches and heavy torque loads, this is the kind of upgrade that holds everything together. It doesn’t just add durability, it brings peace of mind. You can hit the throttle without wondering if the next shift is going to be your last.

Built To Outperform With Materials That Matter

The ATS 4R100 Intermediate Assembly is a serious upgrade over stock, purpose-built for extreme use in racing and high-load diesel environments. The core of the assembly is a 1.198 inch intermediate shaft crafted from 300M alloy steel, offering exceptional tensile strength and fatigue resistance for high-torque performance. Compared to the original .986 inch diameter shaft, this version provides a 21 percent increase in size, significantly reducing the risk of breakage under load. Supporting that shaft is a 4140 HTSR billet steel drum, equipped with both cast and Teflon sealing rings to improve sealing reliability under extreme pressure and heat. The dual bushing support system in the billet steel center support adds a major improvement in shaft stability over the stock bearing setup, especially during high RPM shifts or under intense drivetrain stress. Every component is precision-engineered to deliver longevity and consistent performance in 4R100 transmissions. If your Powerstroke is running hard, this assembly is built to keep up without compromise.

Fits: 1999, 2000, 2001, 2002, 2003 Ford F250/F350 7.3L Powerstroke

Notes:

• Specifically designed for 1999-2003 Ford F250/F350 7.3L Powerstroke trucks
• Built for high-stress applications such as drag racing and sled pulling
• Not recommended for stock or mild daily driving builds
• Intermediate shaft diameter is 1.198 inch compared to .986 inch stock size
• Requires 4R100 transmission compatibility, not suitable for other models
• 300M alloy steel shaft offers superior durability under extreme torque
• Dual bushing support system replaces stock bearing for greater stability
• Forward drum and shaft support made from 4140 HTSR billet steel
• Includes both cast and Teflon sealing rings for improved performance
• Professional installation recommended due to performance-specific design