Air turbulence generated by the rapidly spinning crank can cause the oil in the sump to splash back up onto the crank. The horsepower wasted by this inefficient oil handling can be reclaimed with the addition of a Milodon "Diamond Stripper" windage tray between the crank and the sump. The tray blocks much of the unwanted turbulence and splash-back, while allowing the oil to drain quickly into the sump through hundreds and hundreds of small louvers. It is manufactured from gold plated steel for durability, and backed with the manufacturers limited 90 day warranty. Note: Stock windage tray bolts or Milodon adjustable tray studs (available separately) are required for installation. Stock tray bolts may cause the tray to interfere with stock pan baffle, which will need slight modification.