Schaeffer's Extreme Performance Full Synthetic SAE 75W-140 Gear Lube Is a:
highly shear stable,
thermally stable and durable
synthetic gear lubricant.
Specially formulated for use in Harley Davidson V-Twin transmissions and other high performance differentials. Extreme Performance Full Synthetic SAE 75W-140 is also recommended for use in heavy-duty or high performance transmissions, aftermarket 5-speed and 6-speed separate motorcycle transmissions and final drives, including standard and limited-slip differentials and shaft drive transmissions requiring the use of a hypoid type gear oil.