Hoe to manually lock hubs on4wd 2000 ford f-250?

Hoe to manually lock hubs on4wd 2000 ford f-250?

You don't there automatic locking hubs.
go from 2wd to 4wd at transfer case and apply power slowly and they will lock.
to unlock shift transfer case back to 2wd and drive slowly a few feet and they will disengage

Ford doesn't have manually locking hubs. They will automatically lock after you make the switch. You should not make the switch while the truck is moving.