OS-250R Gear Oil FRS This design is a spline-through-side-gear

This design is a spline-through-side-gear design that allows for fitment of more friction plates (up to 2x as many as competitors versions)

With excellent heat resistance and improved power delivery

Vehicle Height (Highest - Lowest)

Stability is improved by following changes in load

90mm Deep Dished

OS-250R Gear Oil FRS This design is a spline-through-side-gearThe OS 250R was specifically formulated to provide maximum performance and smooth comfort for the OS Giken Super Lock LSD. Lots of testing was done to achieve the appropriate formula needed for the LSD to be smooth, be quiet, and endure the rigors of a racing environment. SAE Rated at 80w 250, it is the top choice by race teams for protection and durability, yet maintains streetlike driveability. (Not recommended for transaxle applications.) Size: 1