2012-2018
66RFE Transmission Performance Upgrades
RedLine builds 66RFE transmissions specifically for Dodge RAM 5.7L and 6.4L HEMI V8 trucks. Our performance builds are engineered for your application, we offer two options to upgrade your 66RFE to the next level. Our upgraded 66RFE transmissions take on all the torque demands of driving, towing and high horsepower. We fix the factory weak points including overdrive clutch failure, torque converter failure and deliver the strength, reliability, and performance your truck deserves.
68RFE
450
ROAD BOSS 450
66RFE Daily Driver / Moderate Towing
This RedLine 66RFE build gives the strength, reliability, and everyday drivability that the factory should have. Designed for truck owners who need dependable performance for daily use and moderate towing, it’s built with premium upgrades that correct factory weaknesses and extend transmission life. We mechanically add 30% more line pressure to this build to give you the added clutch holding power without the need for an aftermarket tune.
Expect a clean crisp shift that makes your truck much more fun to drive.
Rated at up to 450HP
Build Cost: $5,650
66RFE 450 HP Billet Upgrades
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HP Billet Cover Torque Converter
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RedLine Transmissions Custom Built High-Pressure Valvebody
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RedLine Spec Clutches and Steels with Additional Clutches in Overdrive
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High Pressure Precision Machined Front Pump
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All New Bearings
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Gaskets and Seals
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Blueprint Hard Parts Inspection
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Precision Assembly
66RFE 450 HP Features
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TIG Welded Output Shaft Planetary Pins
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HD Roller Sprag
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4C Snap Ring Retainer Upgrade
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New Bonded Pistons
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New MOPAR White Top Solenoid pack
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New MOPAR Filters
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New MOPAR Line Pressure Sensor and Speed
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Deep Aluminum Transmission Pan
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Bead Blasted Transmission Case painted in High-Quality Enamel Paint
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Craftsmanship Warranty: 12 Months/Unlimited Mileage*
550
HD BOSS 550
66RFE Towing & Performance
This RedLine 66RFE build delivers reliable strength for both work and play. Featuring all of the very best upgrades at a competitive price point. Heavy towing, big tires, showing off or just daily driving, the HD Boss can handle it. We mechanically add 30% more line pressure to this build giving you the added clutch holding power without the need for an aftermarket tune. This build is the best option for those looking for a transmission that is more than just stock.
Expect a clean crisp shift that is firmer than the Road Boss. This build will put a smile on your face every time you hit the throttle.
Rated at up to 550HP
Build Cost: $7,000
66RFE 550 HP Billet Upgrades
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HP Billet Cover Torque Converter
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Billet Overdrive Drum (Adds 40% more clutch material to the drum)
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RedLine Transmissions Custom Built High-Pressure Valvebody
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RedLine Spec Clutches and Steels with Additional Clutches in Overdrive
-
High Pressure Precision Machined Front Pump
-
All New Bearings
-
Gaskets and Seals
-
Blueprint Hard Parts Inspection
-
Precision Assembly
66RFE 550 HP Features
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TIG Welded Output Shaft Planetary Pins
-
HD Roller Sprag
-
4C Snap Ring Retainer Upgrade
-
New Bonded Pistons
-
New MOPAR White Top Solenoid pack
-
New MOPAR Filters
-
New MOPAR Line Pressure Sensor and Speed
-
Deep Aluminum Transmission Pan
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Craftsmanship Warranty: 18 Months/Unlimited Mileage*
