1996 ford f150 4x4 you what to remove the automatic hubs and put in manual Thae takes a special tool end have bought for they are all small Is this vaccu?

Yes, the 1996 Ford F-150 4x4 likely uses a vacuum-operated automatic locking hub system. To convert to manual locking hubs, you'll need to replace the entire hub assembly. The "special tool" you mentioned is probably referring to the socket or wrench needed to remove the hubs themselves. While some small tools might be involved, the core conversion isn't vacuum-related in terms of the removal process; you're replacing the vacuum-actuated parts with manual ones.