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InsightGirl > Blog > Artigo > Understanding the 68RFE Transmission: Specs, Features & Costs
Artigo

Understanding the 68RFE Transmission: Specs, Features & Costs

Gigi
Last updated: maio 3, 2025 11:46 am
By Gigi
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6 Min Read

The 68RFE is a six-speed automatic transmission manufactured by Chrysler. It was introduced in 2007 and is commonly used in heavy-duty Dodge Ram trucks, particularly models equipped with the 6.7L Cummins Turbo Diesel engine. Designed to handle higher torque loads, the 68RFE is a critical component in Ram’s capability to haul and tow.

Contents
Key SpecificationsFeaturesCommon ApplicationsCommon IssuesCost BreakdownUpgrade OptionsConclusion

Key Specifications

SpecificationDetails
ManufacturerChrysler
First Introduced2007
Type6-speed automatic
Gear Ratios1st: 3.23:1
2nd: 1.84:1
3rd: 1.41:1
4th: 1.00:1
5th: 0.82:1
6th: 0.63:1
Reverse: 4.44:1
Max Torque Capacity~570 lb-ft (stock)
Weight~260 lbs (dry)
Transmission FluidATF+4 (Mopar Automatic Transmission Fluid)
CoolingExternal cooler recommended

Features

  • Electronically controlled with adaptive learning
  • Integrated Tow/Haul mode for optimized shift patterns
  • Dual overdrive for fuel efficiency at highway speeds
  • Improved clutch and gear strength over its predecessor (545RFE)
  • Typically paired with the 6.7L Cummins diesel engine in 2500 and 3500 series Ram trucks

Common Applications

Vehicle ModelYears UsedEngine
Dodge Ram 25002007.5–present6.7L Cummins Turbo Diesel
Dodge Ram 35002007.5–present6.7L Cummins Turbo Diesel

Common Issues

While reliable under normal use, the 68RFE has a few known issues, especially under heavy stress or improper maintenance:

  • Torque converter failure
  • Valve body issues
  • Slow or harsh shifting
  • Overheating under load without aftermarket cooling

These issues often appear when the transmission is pushed beyond factory torque limits without internal upgrades.

Cost Breakdown

ItemEstimated Cost (USD)
New 68RFE Transmission$3,500–$4,500
Remanufactured Transmission$2,200–$3,500
Labor for Replacement$800–$1,500
Transmission Fluid (ATF+4)$100–$150 (with filter)
Performance Rebuild/Upgrade$4,500–$7,000+

Note: Costs vary based on location, mechanic, and level of upgrade.

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Upgrade Options

Many aftermarket companies offer performance rebuild kits and improved valve bodies for the 68RFE, ideal for those running added horsepower or towing heavy loads regularly.

Popular upgrades include:

  • Billet torque converters
  • High-capacity clutch packs
  • Improved valve bodies and solenoids
  • Deeper pans for better cooling

Conclusion

The 68RFE transmission is a solid workhorse for diesel-powered Ram trucks, striking a balance between performance and durability. While it’s not without its limitations—especially when pushed past factory torque ratings—it can be a reliable unit when maintained properly or upgraded for performance. Whether you’re hauling trailers or building a performance diesel, understanding its capabilities and costs helps make the best decision for your needs.

TAGGED:68RFE Transmission

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