Front Hubs won't unlock!

[cblackb]

Hey All, this auto-4x4 mode is continuing to drive me crazy. I finally got the front hub-locks to MOVE the other day (a lot of penetrating oil!). I worked them back and forth from "auto" to "lock" several times. They are now in the "auto" setting and the truck is in 2wd. However, my front-end axles and diff are still spinning and the truck won't turn easy anymore. What gives? Why won't those hubs disengage? Bad vaccum sensor maybe? I'm going to replace them sometime but for now I'd just like to get them to release. Any help? Thanks!

[mschn99]

try backing up about 20-40 feet.......