Nitto Performance Engineering Nissan Skyline RB Sine Drive Oil Pump CollarMachined from high tensile 709 steel, the Sine Drive collar is exclusive to the Nitto range and can only be used in conjunction with the Nitto Sine Drive oil pump. Used in a multitude of high power street, drag strip, circuit and drift applications, this drive system is proven to work time and time again in the harshest of conditions. The Sine Drive collar uses the same M6 grub screws to lock the collar into place, with pilot holes machined into the