2001 F-350 4X4 locking hub and fuel leak trouble

Get the top of the motor dry, remove whatever may be in the way that is unnecessary. Have someone step on the accerator as you watch for puddling. If you don't first dee it, again dry it and repeat until you narrow it down. Keep in mind that fluid leaks can be deceiving, good lighting and a small dental style mirror are often advanageous.

What problem symptoms are you having on the 4wd?

Thank-you for donating :D

Ive seen many of the fuel seperators leak out of the drain valve and other places. Usually replace the whole thing(ouch!) But im sure it will stop your leaks. As for the hub, click on the link at the bottom of the main forum page. They should have the schematic you are looking for. If not go to your local dealer and ask them to print you one up, they do it all the time for parts when they arent sure what you want. Oh yeah, if you replace the seperator assembly, get all the sealing rings at the same time, dont ask me why but they dont come with the part