truck will randomly pop out of 4x4. better front end??

[stroker221]

2010 6.4 will jump out of 4x4 every now and then. Any body else have this problem? What would be a good alternative to fords front end? Just wanna b sure my truck will lock in 4x4 when I need it to the most

 

[parkland]

You should get the vaccuum checked, and maybe get the hubs rebuilt or cleaned out with fresh lube.

Chances are nothing is wrong with axle, just needs cleaning or a vaccuum issue/leak.

 

[stroker221]

Ok thanks!