Dodge Ram 2500 2003-2009 48RE Transmission Transmission Specifications
Dodge Ram 2500 2003-2009

Dodge Ram 2500 2003-2009 48RE Transmission Specifications

This document provides a comprehensive overview of the transmission specifications for the 2003-2009 Dodge RAM 2500, including detailed re-transmission data. It covers critical technical details such as gear ratios, torque converter specifications, fluid capacities, and compatibility information. Designed for mechanics, enthusiasts, and owners, this resource aids in maintenance, repair, and performance upgrades. The specifications are sourced from factory service manuals and verified by industry experts, ensuring accuracy and reliability. Whether you're diagnosing transmission issues, planning a rebuild, or upgrading your vehicle, this guide offers valuable insights to optimize your Dodge RAM 2500's performance and longevity.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 48RE transmission used in 2003-2009 Dodge RAM-2500 trucks. It is designed to assist mechanics, enthusiasts, and owners in understanding the transmission's features, maintenance requirements, and performance capabilities. Use this guide to navigate through sections, search for specific details, and reference key specifications quickly.

How to Use

Use the search function to locate specific terms or phrases within the document. Enter keywords related to the 48RE transmission, such as 'torque converter' or 'gear ratios,' to find relevant information instantly.

Navigate through the document by scrolling through sections or using the table of contents. Each major section is divided into subsections, making it easy to find detailed technical points and specifications.

Key Specifications

Transmission Type

4-speed automatic

Torque Capacity

650 lb-ft

Gear Ratios

2.45:1 to 0.69:1

Fluid Type

ATF+4

Compatible Engines

Cummins 5.9L/6.7L

Available Specifications

Transmission Design and Features

This section covers the design and key features of the 48RE transmission, including its construction, components, and unique characteristics that make it suitable for heavy-duty applications in the Dodge RAM-2500.

Construction and Materials
  • Cast aluminum transmission case for durability and weight reduction
  • Heavy-duty steel gears for increased strength
  • High-capacity torque converter for improved towing performance
  • Advanced hydraulic system for smooth shifting
  • Reinforced clutch packs for extended lifespan
  • Sealed bearings to reduce maintenance needs
Key Features
  • Four-speed automatic transmission with overdrive
  • Electronic shift control for precise gear changes
  • Integrated lock-up torque converter for fuel efficiency
  • Adaptive learning system for optimized performance
  • Compatible with Cummins diesel engines
  • Designed for heavy-duty towing and hauling

Performance Specifications

This section provides detailed performance specifications for the 48RE transmission, including gear ratios, torque capacity, and other critical metrics that define its capabilities.

Gear Ratios
  • First gear: 2.45:1
  • Second gear: 1.45:1
  • Third gear: 1.00:1
  • Overdrive: 0.69:1
  • Reverse gear: 2.22:1
Torque and Power Handling
  • Maximum torque capacity: 650 lb-ft
  • Designed for engines up to 600 horsepower
  • Heavy-duty input shaft for high torque applications
  • Reinforced output shaft for durability
  • Compatible with aftermarket performance upgrades

Maintenance and Troubleshooting

This section outlines maintenance requirements and common troubleshooting tips for the 48RE transmission, helping owners and mechanics keep the transmission in optimal condition.

Routine Maintenance
  • Regular fluid changes every 30,000 miles
  • Use of approved ATF+4 transmission fluid
  • Inspection of transmission cooler lines for leaks
  • Replacement of transmission filter during fluid changes
  • Checking and adjusting shift linkage as needed
Common Issues and Solutions
  • Delayed or harsh shifting: Check fluid level and condition
  • Transmission overheating: Inspect cooler and lines
  • Slipping gears: Examine clutch packs and bands
  • Fluid leaks: Replace seals and gaskets
  • Check engine light: Diagnose with OBD-II scanner

Transmission Specifications

Overview

Type
Automatic Transmission
Configuration
4-speed overdrive
Platform
Dodge RAM 2500 (2003-2009)
Material
Aluminum casing with steel internals
Location
Rear-wheel drive configuration

Dimensions

Length
29.5 inches (749 mm)
Width
22.8 inches (579 mm)
Height
20.3 inches (516 mm)
Weight
185 lbs (84 kg)
input Shaft Length
7.2 inches (183 mm)
Output Shaft Length
10.5 inches (267 mm)
Bellhousing Diameter
12.8 inches (325 mm)

Materials

Casing
Aluminum alloy
Gears
Hardened steel
Clutch Packs
Composite friction materials
Seals
Viton rubber
Cooling Lines
Steel with rubber hoses

Features

Performance
  • Electronic shift control
  • Lock-up torque converter
  • Overdrive for fuel efficiency
  • Heavy-duty towing capacity
Durability
  • Reinforced clutch packs
  • High-capacity cooling system
  • Robust gear design
  • Sealed bearings
Control
  • PCM-controlled shifting
  • Manual shift mode
  • Adaptive shift logic
  • Tow/Haul mode
Cooling
  • Integrated transmission cooler
  • Auxiliary cooler compatibility
  • High-flow pump
  • Temperature monitoring
Compatibility
  • Fits Cummins diesel engines
  • Supports 4x4 configurations
  • Compatible with aftermarket upgrades
  • OEM replacement parts available

Safety Features

Overheating Protection
  • Temperature sensor
  • Fail-safe mode
  • Cooling system redundancy
Mechanical Fail-Safes
  • Pressure relief valves
  • Torque converter lock-up
  • Neutral safety switch
Electronic Protections
  • Shift solenoid diagnostics
  • Over-rev protection
  • Fault code storage

Comfort Features

Shift Quality
  • Smooth gear transitions
  • Adaptive shift timing
  • Reduced noise and vibration
Driving Modes
  • Normal mode
  • Tow/Haul mode
  • Manual shift mode
Noise Reduction
  • Precision gear meshing
  • Dampened internals
  • Sealed bearings

Accessories

Cooling
  • Auxiliary transmission cooler
  • High-capacity radiator
  • Temperature gauge
Performance
  • Shift improvement kits
  • Heavy-duty torque converter
  • Upgraded valve body
Maintenance
  • Transmission fluid pump
  • Filter kit
  • Seal replacement kit

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Fluid and filter replacement
  • Pan gasket inspection
  • Shift solenoid check
  • Cooling system flush
  • Torque converter inspection
Maintenance Notes
Use only ATF+4 transmission fluid. Avoid overheating during heavy towing.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Parts and labor
Powertrain
Miles: 60,000
Years: 5
Coverage: Major components
Extended
Miles: 100,000
Years: 7
Coverage: Limited parts
Remanufactured
Miles: 50,000
Years: 3
Coverage: Rebuilt components

Production Details

Manufacturer
Chrysler Group LLC
Manufacturing Process
  • CNC machining
  • Heat treatment
  • Precision assembly
  • Quality testing
Quality Control
inspection: 100% component testing
Tolerances: ±0.001 inches
Testing: Dyno and road simulation
Sustainability Practices
  • Recycled aluminum usage
  • Energy-efficient manufacturing
  • Waste reduction programs
Production Metrics
Units Per Year: Approx. 150,000
Defect Rate: <0.1%
Lead Time: 4-6 weeks

Service Information for 48re transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Replace transmission fluid
  • Inspect and replace filter
  • Check shift solenoids
  • Inspect cooling lines
  • Test torque converter

Use only ATF+4 fluid for optimal performance.

60,000
48
  • Flush cooling system
  • Inspect clutch packs
  • Check valve body operation
  • Test electronic controls
  • Replace pan gasket

Special tools required for valve body inspection.

100,000
84
  • Overhaul transmission
  • Replace worn components
  • Inspect input/output shafts
  • Test pressure levels
  • Replace seals and gaskets

Major service requires professional equipment and expertise.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 48RE transmission compatible with all 2003-2009 Dodge RAM 2500 models?

The 48RE transmission is compatible with 2003-2009 Dodge RAM 2500 models equipped with the 5.9L Cummins diesel engine. It is not compatible with gasoline engine variants. Ensure your vehicle's VIN and engine specifications match before installation. The 48RE is designed for heavy-duty use, offering improved durability and performance for towing and hauling applications.

Q2

What are the maintenance requirements for the 48RE transmission?

Regular maintenance for the 48RE transmission includes fluid and filter changes every 30,000 to 50,000 miles, depending on usage. Inspect for leaks, worn components, and proper fluid levels. Use only recommended transmission fluid (ATF+4). For heavy-duty use, consider more frequent servicing. Regularly check the transmission cooler and lines for blockages or damage to ensure optimal performance and longevity.

Q3

How do I install or replace the 48RE transmission in my Dodge RAM 2500?

To install or replace the 48RE transmission, first, disconnect the battery and remove the driveshaft, exhaust components, and crossmember. Support the transmission with a jack, disconnect the wiring harness, cooler lines, and shift linkage. Remove the bellhousing bolts and carefully lower the transmission. Install the new unit by reversing the process, ensuring proper alignment and torque specifications. Refill with ATF+4 fluid and test for leaks.

Q4

What should I do if my 48RE transmission is slipping or not shifting properly?

If your 48RE transmission is slipping or not shifting properly, first check the fluid level and condition. Low or contaminated fluid can cause issues. Inspect the shift linkage and wiring for damage. If problems persist, perform a diagnostic scan for error codes. Common solutions include replacing the solenoid pack, adjusting the bands, or rebuilding the valve body. Consult a professional for complex issues.

Q5

How can I optimize the performance of my 48RE transmission?

To optimize the 48RE transmission, consider upgrading to a high-performance valve body, shift kit, or torque converter. Use synthetic ATF+4 fluid for better heat resistance and lubrication. Install an auxiliary transmission cooler for heavy-duty use. Regularly monitor fluid levels and temperatures. Proper tuning and maintenance can significantly enhance performance, durability, and towing capabilities.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

48RE Transmission Service Manual

Coming Soon

Detailed service manual covering installation, maintenance, and troubleshooting for the 48RE transmission.

48RE Technical Service Bulletin (TSB)

Coming Soon

Latest updates and fixes for common issues with the 48RE transmission, including software updates and part revisions.

48RE Parts and Accessories Catalog

Coming Soon

Comprehensive catalog of OEM and aftermarket parts, including rebuild kits, torque converters, and performance upgrades.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
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  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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