I currently own a 1990 XLT 302 with 2 push buttons (low and reg 4x4). The buttons are giving me trouble my automatically turning on while driving on the x-way. I wanted to resolve this situation by converting to manual hubs (warn). Also will the manual hubs be easy to switch over when installed for a woman becuase my girlfriend will drive the truck when weather is bad. Is this conversion possible and easy? Will changing my hubs affect engine or drivetrain? Should I get the premium hubs and conversion kit? I just would like to know more information and the processes before I am going to shell out money I dont have. Thank you!