The Blackline limited slip differential for the Ford Fiesta Mk7 ST180 and Focus 1.6 EcoBoost with IB6 transmission, also known as an LSD (limited slip differential), improves traction by distributing torque between the two-wheel drive drive wheels based on available grip.
Its helical gear design allows the limited slip differential to transmit more torque to the wheel with the best traction. As torque increases, the gears press against the differential housing and generate the internal friction necessary for this torque distribution. The system thus makes better use of available traction, particularly during hard acceleration and when exiting corners.
Under light loads, the helical limited slip differential maintains smooth, progressive, and quiet operation. The wheels can continue to rotate at different speeds when necessary, particularly when cornering. This feature enhances traction during spirited driving while maintaining handling suitable for on-road use.
The Blackline limited slip differential uses a parallel-axis helical gear architecture optimized to distribute forces. Its 5:1 torque split means that when one of the wheels loses traction, the wheel with the most traction can receive up to five times the torque transmitted to the spinning wheel.
As with any helical-gear limited slip differential, a minimum amount of resistance must remain on the wheel with the least grip to allow torque transfer. It is therefore most effective when both wheels maintain a minimum level of resistance. This technology also works particularly well in conjunction with modern ABS systems.
The Blackline HLF016 limited slip differential is designed for the Ford Fiesta Mk7 ST180 and Ford Focus 1.6 EcoBoost equipped with the IB6 transmission. The transmission type must be verified before ordering to confirm compatibility with the vehicle. Its housing and gears are made of high-resistance 8620 steel.
Manufacturer Part Number: HLF016
Quaife application match: QDF57Z
Type: Helical-gear limited slip differential
Vehicle compatibility: Ford Fiesta Mk7 ST180
Vehicle compatibility: Ford Focus 1.6 EcoBoost
Type of box: IB6
Torque split ratio: 5:1
Housing and gear material: High-resistance 8620 steel
Mounting: Direct replacement for the stock differential on compatible models
