This oil pump pickup allows you to use a High Volume oil pump in a 2V pickup truck oil pan application. This tube is 15/16" in diameter for high volume pumps and is special. The standard 2V pickup truck tube is 13/16" and WILL NOT WORK with high volume and high pressure pumps. Fits the following high volume oil pumps in pickup truck oil pans: Ford Racing High Volume, Ford Racing High Pressure, Melling Cobra pumps, Melling Hi Perf billet gear 10227, Melling 10340, Melling M227 Cobra, Melling M340, Melling M360