Grannas Exclusive 4.11 Ring & Pinion for the 220mm MKIV Supra Diff, manufactured by Neat Gear Boxes
* Made out of Billet EN36C Steel (this is a much higher grade than OEM material).
* Initial soft cut on Gleason hobbing machine.
* Heat Treated then profile ground to final finish with Gleason CNC grinder to remove any distortion from the heat treatment process.
* Optimized gear profile for racing use
* Designed with OEM NVH in mind with a balance between improved strength over standard and a tooth cut that will be just as quiet.