
Quaife's ATB differential is now available in over 300 different applications, covering everything from Alfa Romeo to Volvo. These differentials are usually available as aftermarket items, but for some models are specified by automobile manufacturers as OEM equipment. Quaife's signature product is its line of automatic torque biasing differentials, a form of limited slip differential that employ helical gears rather than clutch mechanisms that are controlled mechanically. Quaife gearkits were used to achieve victories in the Daytona Speedway and Isle of Man TT.īased near Sevenoaks, Kent they have two sites, one in Sevenoaks and the other, their OEM production facility, in Gillingham. Quaife also took on subcontracted work from AMC the makers of Matchless and AJS motorcycles. The early days at Quaife were spent manufacturing performance motorcycle gearkits, most notably close ratio 5-speed units for Triumph, BSA and Norton.
Quaife sequential porsche professional#
The company was founded in 1965, by Rod Quaife and is now run and owned by Sharon Quaife-Hobbs, Sharon's son Adrian Quaife-Hobbs is the owner of Pro-Sim and is a professional racing driver. It designs and manufactures motorsport and performance orientated gearboxes, gearkits, differentials, steering racks and axle kits, along with many other associated drivetrain products. is a British manufacturer of automotive drivetrain products. Strengthened outer casing with stock mounting positions (excl bell housing.R.T. Geartronics LED digital gear position indicator and Flatshift Kit (optional) Choice of Quaife ATB limited slip differential (QDF1U) or plate-type LSD (TDX1U) (optional) Choice of Quaife final drive ratio included (optional) Air-shift compatible with optional Quaife actuator Ultra-fast Quaife sequential gearshift designed for a rod change lever Strengthened outer casing with stock mounting positions (excl bell housing. The choice of final drive ratio allows users to choose the best overall ratio for their discipline whether fast road, rally or track. The open differential can be reused or replaced with a plate-type LSD or Quaife ATB differential, and is positioned in the same place in the car so that standard Honda fitment drive shafts can be installed. The close ratio, open-face dog gears are coupled with Quaife’s state-of-the-art quick shift internals to give a precise, racing gear change. The QBE9J retains the stock bellhousing with a Quaife designed and manufactured main case and cover to allow a hassle-free replacement of the original H-pattern gearbox.

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