FTI Performance 6R80 Billet Transmission Intermediate Shaft; 300M (11-17 F-150 w/ 6R80 Automatic Transmission)Find parts that fit my vehicle

Billet 6R80 Intermediate Shaft – 300M Alloy Steel (Heavy Duty Upgrade) Upgrade the weak link in your 6R80 with our Billet 6R80 Transmission Intermediate Shaft, precision-machined from premium 300M alloy steel for extreme strength, durability, and high-torque reliability. Designed for serious street builds, drag racing, boosted applications, and heavy-duty performance use, this intermediate shaft is built to handle the power levels that push factory components past their limit.

The stock 6R80 intermediate shaft can become a failure point under high horsepower, aggressive shifting, and hard launches — especially in supercharged, turbocharged, nitrous, or high-grip setups. Our billet upgrade is engineered for drivers who demand confidence when the transmission is loaded hard, shift after shift.

Key Features & Benefits CNC-machined billet construction for consistent strength and accuracy

Made from 300M steel — a premium high-strength alloy known for exceptional toughness

Built for high horsepower and high torque 6R80 builds

Ideal for drag racing, roll racing, street performance, and track abuse

Direct performance upgrade for builders replacing weak factory drivetrain components

Perfect For: Boosted Coyote 5.0 builds (turbo/supercharger)

High-torque street cars and drag cars

Aggressive tuning and hard shifting setups

Racers looking for a stronger 6R80 transmission internals package

If you’re building a reliable performance transmission, this 300M billet 6R80 intermediate shaft is a must-have upgrade for long-term durability and peace of mind at the track or on the street.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov