You will have to completely disassemble the lower unit to replace the driveshaft and the water tube.<br /><br />Parts:<br /><br />driveshaft<br />water tube<br />complete L/U seal kit<br /><br />Might as well throw in a water pump while you're at it.
CropdusterPilot <br /><br />You will also need a new mid-section as no Evinrude 20-25HP since 70 are made with removable conversion inserts.<br /><br />Please stick to one thread. I gave you a solution in the other, end this.