Used Factory OEM Volvo Penta SX/DP-SM Upper Gear Housing / Outdrive / Sterndrive spacer plate.This Plate is one inch Thick and has the longer Slip Yoke and longer studs with some used rubber gaskets should be all you need to get your prop down it the water another inch..But Cant say for sure if every thing is here or not.I Did just find The Lower Water pick up tube That i will include.So that should be about it. Please Do Your research.This is A Factory Made Part and should work very well.