ATS Diesel Stage 2 Transmission Package

2003–2004 Dodge Ram 2500 / Ram 3500 4WD 48RE

3099242272

Overview:

The ATS Diesel Stage 2 Transmission Package is a premium upgrade designed specifically for 2003 to 2004 Dodge Ram 2500 and Ram 3500 models equipped with the 48RE 4WD transmission. Engineered to enhance durability and performance, this package is ideal for diesel truck owners seeking improved transmission reliability under demanding conditions. Whether you tow heavy loads or drive aggressively, the Stage 2 package offers reinforced components that help extend transmission life and optimize power delivery.

Built by ATS Diesel, a trusted name in diesel performance parts, this package addresses common transmission weaknesses found in early 2000s Dodge Ram trucks. It is tailored for owners who want to maintain factory drivability while upgrading their transmission’s strength to handle increased torque and horsepower.

Key Features:

This Stage 2 Transmission Package includes a range of enhancements designed to improve the 48RE transmission’s durability and shift quality:

• Heavy-duty input and output shafts engineered for increased torque capacity
• Upgraded planetary gear sets for enhanced strength and longevity
• Reinforced clutch packs to reduce slippage and improve shift firmness
• Precision-machined components for optimal fit and reduced wear
• High-quality materials selected to withstand heavy-duty use and heat
• Designed specifically for 4WD Dodge Ram 2500 and 3500 models from 2003 to 2004
• Compatible with factory transmission control systems for seamless integration
• Improves transmission reliability under towing and performance driving conditions

Construction & Design:

The ATS Diesel Stage 2 Transmission Package is crafted using premium-grade steel alloys and precision manufacturing techniques to ensure maximum strength and durability. Each component undergoes rigorous quality control to meet ATS Diesel’s exacting standards. The upgraded shafts and gears are heat-treated to resist wear and fatigue, while clutch packs are designed to deliver consistent engagement without sacrificing smoothness.

Attention to detail in machining and assembly ensures that all parts fit precisely within the 48RE transmission housing, minimizing the risk of premature failure and maintaining factory shift quality. This package is engineered to handle the increased torque output common in diesel-powered Dodge Rams, making it a reliable choice for performance and heavy-duty applications.

Installation & Fitment:

This transmission package is a direct fit upgrade for 2003 and 2004 Dodge Ram 2500 and Ram 3500 trucks equipped with the 48RE 4WD transmission. Installation requires professional transmission disassembly and rebuild expertise. It is recommended to have the package installed by a qualified technician familiar with Dodge diesel transmissions to ensure proper assembly and calibration.

No major modifications to the vehicle’s drivetrain or electronics are necessary, as the package is designed to integrate seamlessly with the factory transmission control system and drivetrain components.

What's Included:

• Upgraded input shaft
• Reinforced output shaft
• Heavy-duty planetary gear sets
• Enhanced clutch packs
• Precision-machined internal components
• Installation instructions and technical support documentation

Ideal For:

This ATS Diesel Stage 2 Transmission Package is ideal for Dodge Ram 2500 and 3500 owners who:

• Regularly tow heavy trailers or haul substantial payloads
• Drive in demanding off-road or worksite conditions
• Have upgraded their engine for increased horsepower and torque
• Require improved transmission durability and shift quality
• Want to extend the service life of their 48RE transmission

ATS Diesel Performance builds diesel upgrade solutions engineered for higher torque, towing confidence, and competition-level durability. Best known for performance-built transmissions, ATS also offers turbochargers, exhaust and fuel system components, and other supporting parts designed to handle heavy loads and elevated power on modern diesel trucks.