hey my 4x4 f150's 4 wheel drive doesnt work......i have a manual locking hub on the passenger side and an automatic on the driver side....is that why it doent work? ive tried to use it before and when turning a corner front tires start churping. ....... i have a manual hub for the driver side that i have yet to put in.....should i put that in or is there something else wrong with the 4 hwheel drive causing it not to work?
thanks
Josh

 

if u have hop it must be workin

 

so when im turning like in a u turn and they hop. then the 4 wheel drive is working?