So, does anyone have any experience with warn hubs that quit locking? I replaced the factory auto a few years ago because they wouldn't lock anymore and now the warn ones won't lock. The drive shaft turns fine but not the front wheels.

 

Probably have to clean them out. When you lock them it basically pushes them in with a spring so if there's dirt and grease in there it will stop them from engaging.

Lock both of them then try turning the wheel joint behind the tire to see which one is bad. ( Leave transfercase in 2wd)

 

Great idea, thanks for the reply.