Exclusively made for us, a Quaife torque biasing front differential for the R35 Nissan GTR. The design principle of the Quaife product uniquely improves handling especially at the track (either circuit or drag). Any loss in traction from one wheel causes a worm drive design to transmit power to the other wheel. In operation this produces a smooth feel and no jerky drive changes as experienced with traditional clutch pack or sprag diffs. The result, less damage to the drivetrain and faster times ! **if installing on cars Manufactured newer than February 2017, it is necessary to substitute the driveshaft flanges (stub axles)LH/RH from an earlier model** This price is EX works and Excludes UK sales tax - For Export