Voodoo13 Solid Differential Conversion Bushings Nissan 240sx 89-94 S13 Voodoo13 Solid Differential Conversion Bushings for Nissan 240sx 89-94 S13. Allows use of S14, S15, Z32 non-turbo, J30 or Skyline rear differentials. Features: CNC machined from high quality USA sourced T6061 aerospace grade aluminum Provides stability during hard launching and/or initiating drift Eliminates play from the soft rubber OEM bushings Assists in reducing wheel hop Greatly improves power transfer to the pavement Class 10.9 hardware included Made in the USA