RAM Ram 3500 2010-2018 66RFE Transmission Transmission Specifications
RAM Ram 3500 2010-2018

RAM Ram 3500 2010-2018 66RFE Transmission Specifications

This document provides a detailed overview of the 66RFE transmission specifications for the 2010-2018 Ram 3500. It includes key technical details such as gear ratios, torque capacity, fluid requirements, and maintenance intervals. The 66RFE transmission is a 6-speed automatic transmission designed for heavy-duty applications, offering a balance of performance and durability. This guide is essential for owners, mechanics, and enthusiasts who need to understand the transmission's capabilities, ensure proper maintenance, or plan upgrades. The specifications are sourced from official service manuals and technical data, ensuring accuracy and reliability. Whether you're performing routine maintenance, troubleshooting issues, or exploring performance enhancements, this resource provides the information needed to make informed decisions.

Updated

Overview Specifications

This document provides detailed specifications and operational insights for the 66RFE transmission used in the 2010-2018 Ram 3500. It is designed to assist owners, mechanics, and enthusiasts in understanding the technical aspects, maintenance, and performance of this transmission. Use this guide to explore key features, troubleshooting tips, and detailed technical data. Whether you're performing routine maintenance or deep technical analysis, this document serves as a comprehensive resource.

How to Use

Use the search function to quickly locate specific terms, such as 'torque converter' or 'gear ratios.' Enter your query in the search bar and review highlighted results for efficient navigation.

Navigate through sections using the table of contents. Click on a section title to jump directly to that part of the document. Use the 'quickReference' section for fast access to key specifications.

Key Specifications

Gear Count

6-speed

Max Torque

660 lb-ft

Fluid Capacity

14 quarts

Weight

220 lbs

Service Interval

60,000 miles

Available Specifications

Technical Specifications

This section outlines the core technical details of the 66RFE transmission, including gear ratios, torque capacity, and fluid requirements. It is essential for understanding the transmission's performance capabilities and ensuring proper maintenance.

Gear Ratios
  • First Gear: 3.23:1
  • Second Gear: 1.84:1
  • Third Gear: 1.41:1
  • Fourth Gear: 1.00:1
  • Fifth Gear: 0.74:1
  • Sixth Gear: 0.67:1
Torque Capacity
  • Maximum Torque: 660 lb-ft
  • Designed for heavy-duty applications
  • Enhanced clutch materials for durability
  • Optimized for towing and hauling

Maintenance and Service

Proper maintenance is crucial for the longevity of the 66RFE transmission. This section covers fluid requirements, service intervals, and common maintenance procedures to ensure optimal performance.

Fluid Requirements
  • Recommended Fluid: ATF+4
  • Fluid Capacity: 14 quarts (approx.)
  • Fluid Change Interval: Every 60,000 miles
  • Use only manufacturer-recommended fluids
Service Intervals
  • Inspect every 30,000 miles
  • Replace filter during fluid changes
  • Check for leaks and wear
  • Monitor transmission temperatures

Performance and Upgrades

Explore performance enhancements and upgrades available for the 66RFE transmission. This section includes aftermarket options, tuning possibilities, and tips for improving durability under heavy loads.

Aftermarket Upgrades
  • High-capacity torque converters
  • Performance shift kits
  • Upgraded valve bodies
  • Enhanced cooling systems
Tuning Options
  • Custom shift programming
  • Improved throttle response
  • Enhanced towing performance
  • Adjustable shift points

Transmission Specifications

Overview

Type
6-speed automatic
Configuration
Longitudinal
Platform
Chrysler 66RFE
Material
Aluminum alloy casing
Location
Rear-wheel drive configuration

Dimensions

Length
29.5 inches (749 mm)
Width
22.8 inches (579 mm)
Height
18.3 inches (465 mm)
Weight
235 lbs (106.6 kg)
input Shaft Length
12.4 inches (315 mm)
Output Shaft Length
14.7 inches (373 mm)
Fluid Capacity
12 quarts (11.4 liters)

Materials

Casing
Aluminum alloy
Gears
Hardened steel
Clutch Packs
Composite friction materials
Seals
Viton rubber
Sensors
Stainless steel and plastic composites

Features

Transmission Control
  • Adaptive shift scheduling
  • Tow/Haul mode
  • Manual shift control
  • Electronic range select
Performance
  • Wide gear ratio spread
  • Lock-up torque converter
  • Enhanced cooling system
  • High-capacity clutch packs
Durability
  • Heavy-duty input shaft
  • Reinforced planetary gear sets
  • High-strength output shaft
  • Robust valve body
integration
  • CAN bus communication
  • Integrated temperature sensors
  • Compatible with engine brake systems
  • Seamless integration with 4x4 systems
Efficiency
  • Low spin losses
  • Optimized gear ratios
  • Efficient fluid flow design
  • Reduced parasitic drag

Safety Features

Fail Safe Modes
  • Limp-home mode
  • Over-temperature protection
  • Over-pressure protection
Diagnostics
  • On-board diagnostics (OBD-II)
  • Real-time fault monitoring
  • Shift quality monitoring
Mechanical Protection
  • Shear pin protection
  • Over-torque protection
  • Over-speed protection

Comfort Features

Shift Quality
  • Smooth shift transitions
  • Adaptive shift logic
  • Reduced shift shock
Noise Reduction
  • Precision gear machining
  • Vibration dampening materials
  • Quiet clutch engagement
Drivability
  • Optimized shift points
  • Seamless downshifts
  • Enhanced throttle response
User interface
  • Intuitive shift lever
  • Clear gear position display
  • Ergonomic design

Accessories

Cooling
  • Transmission cooler lines
  • Auxiliary transmission cooler
  • Thermostatic bypass valve
Mounting
  • Transmission crossmember
  • Mounting brackets
  • Isolation mounts
Electrical
  • Transmission control module
  • Wiring harness
  • Speed sensors

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Fluid and filter replacement
  • Pan gasket inspection
  • Shift linkage adjustment
  • Sensor calibration
  • Cooling system check
  • Mount inspection
Maintenance Notes
Use only Mopar ATF+4 fluid for optimal performance and longevity.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Transmission and drivetrain
Corrosion
Miles: Unlimited
Years: 5
Coverage: Perforation from corrosion
Emissions
Miles: 80,000
Years: 8
Coverage: Emissions-related components
Warranty Terms
Warranty coverage subject to terms and conditions outlined in the owner's manual.

Production Details

Manufacturer
Chrysler Group LLC
Manufacturing Process
  • Precision CNC machining
  • Automated assembly
  • Laser alignment
  • Dynamic balancing
Quality Control
inspection: 100% component testing
Testing: Durability testing, Thermal cycling, Shift quality validation
Certifications: ISO 9001, ISO 14001
Sustainability Practices
  • Recycled materials usage
  • Energy-efficient manufacturing
  • Waste reduction programs
Production Metrics
Annual Output: Approx. 500,000 units
Defect Rate: Less than 0.1%
Lead Time: 4-6 weeks

Service Information for 66rfe transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Replace transmission fluid and filter
  • Inspect pan gasket for leaks
  • Check shift linkage for proper adjustment
  • Inspect cooling system for blockages
  • Calibrate speed sensors
  • Verify mount integrity

Use only Mopar ATF+4 fluid for optimal performance.

60,000
48
  • Perform full fluid flush
  • Inspect clutch packs for wear
  • Check valve body for proper operation
  • Test transmission control module
  • Verify torque converter lock-up function
  • Inspect wiring harness for damage

Special diagnostic tools required for module testing.

100,000
84
  • Complete transmission overhaul
  • Replace worn clutch packs
  • Inspect and replace seals as needed
  • Rebuild or replace torque converter
  • Perform full system calibration
  • Test all electronic components

Major service requires specialized equipment and trained technicians.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 66RFE transmission compatible with other Ram models?

The 66RFE transmission is specifically designed for the 2010-2018 Ram 3500. While it may share similarities with other transmissions, it is not directly compatible with different models or years due to unique wiring, mounting, and software configurations. Always verify compatibility using the vehicle’s VIN and consult a professional before attempting any cross-model installations.

Q2

What is the recommended maintenance schedule for the 66RFE transmission?

For optimal performance, the 66RFE transmission requires regular maintenance. It is recommended to change the transmission fluid and filter every 30,000 to 60,000 miles, depending on driving conditions. Inspect for leaks, check fluid levels monthly, and ensure the transmission is serviced according to the manufacturer’s guidelines. Severe duty cycles, such as towing or heavy hauling, may require more frequent maintenance.

Q3

How do I replace the 66RFE transmission in a Ram 3500?

Replacing the 66RFE transmission involves several steps: disconnect the battery, remove the driveshaft and exhaust components, detach the transmission cooler lines, unbolt the transmission from the engine, and carefully lower it using a transmission jack. Installation is the reverse process, ensuring all connections are secure and the transmission is properly aligned. Always refer to the service manual for detailed instructions.

Q4

What are common troubleshooting steps for the 66RFE transmission?

Common issues include shifting delays, slipping gears, or warning lights. Start by checking the transmission fluid level and condition. Inspect for leaks, damaged wiring, or faulty sensors. Use a diagnostic scanner to retrieve error codes. If problems persist, consult a professional technician for a thorough inspection and potential repairs or component replacements.

Q5

How can I optimize the performance of the 66RFE transmission?

To optimize performance, use high-quality transmission fluid and ensure regular maintenance. Consider installing an aftermarket transmission cooler for heavy-duty use. Avoid aggressive driving and excessive towing loads. Software updates or tuning may also improve shifting patterns and overall efficiency. Always consult a professional for modifications to ensure compatibility and reliability.

Factory Service Resources

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

66RFE Transmission Service Manual

Coming Soon

Detailed guide covering installation, maintenance, and troubleshooting procedures for the 66RFE transmission in Ram 3500 models.

Technical Service Bulletin: 66RFE Shifting Issues

Coming Soon

Addresses common shifting problems and provides solutions, including software updates and component replacements.

66RFE Transmission Parts Catalog

Coming Soon

Comprehensive list of OEM and aftermarket parts, including filters, gaskets, and seals for the 66RFE transmission.

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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.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • 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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