ATS Diesel Stage 6 Transmission Package

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

3099642272

Overview:

The ATS Diesel Stage 6 Transmission Package is a comprehensive upgrade solution designed specifically for 2003 to 2004 Dodge Ram 2500 and Ram 3500 trucks equipped with the 4WD 48RE transmission. Engineered to handle increased power and torque demands, this package is ideal for diesel enthusiasts and professionals seeking enhanced durability and performance from their transmission system.

Built to withstand the rigors of heavy towing, hauling, and off-road use, the Stage 6 package offers improved shift quality, reliability, and longevity. It is a perfect fit for Dodge Ram 2500 Laramie, SLT, and ST models as well as Ram 3500 Laramie, SLT, and ST trims within the specified years.

Key Features:

This transmission package incorporates advanced components and engineering improvements to deliver superior performance and reliability:

• Upgraded internal transmission components designed for high torque capacity
• Enhanced clutch packs and bands for improved holding power and shift feel
• Precision-machined parts for optimal fit and durability
• Heavy-duty torque converter optimized for diesel applications
• Reinforced valve body for consistent hydraulic control
• Improved cooling capabilities to reduce heat-related wear
• Complete rebuild kit included for a full transmission overhaul
• Tested and calibrated to ensure smooth shifting and extended service life

Construction & Design:

The ATS Diesel Stage 6 Transmission Package is crafted using high-quality materials and precision engineering to meet the demanding requirements of diesel-powered Dodge Ram trucks. Components are manufactured with durable alloys and treated surfaces to resist wear and heat degradation. The design focuses on reinforcing critical transmission areas prone to failure under increased load, ensuring the package delivers consistent performance even under heavy-duty conditions.

Each part undergoes rigorous quality control and testing to maintain ATS Diesel’s standards for reliability and longevity, making this package a trusted upgrade for serious diesel truck owners.

Installation & Fitment:

This package is a direct fit for 2003 and 2004 Dodge Ram 2500 and Ram 3500 models equipped with the 4WD 48RE transmission. Installation requires professional transmission rebuilding skills and tools, as it involves a complete teardown and rebuild of the transmission assembly. Proper installation ensures optimal performance and durability gains.

While no major modifications are necessary, it is recommended to have the installation performed by a qualified technician familiar with Dodge diesel transmissions to guarantee correct assembly and calibration.

What's Included:

• Upgraded clutch packs and bands
• Heavy-duty torque converter
• Reinforced valve body components
• Complete rebuild kit with seals and gaskets
• Precision-machined internal parts
• Installation instructions and technical support

Ideal For:

This transmission package is ideal for Dodge Ram 2500 and 3500 owners who demand enhanced transmission durability and performance for towing, hauling, or off-road use. It suits diesel truck enthusiasts looking to upgrade their 48RE transmission to handle increased power levels and improve shift quality under heavy load conditions.

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.