i"m installing mine tomorrow, u also lengthing ur fuel filling tube and vent, raise ur spare winch raise up bumper. As far as cable no there is more than enough slack.
something else people dont relized is that u need to weld a couple bed support blocks and sometimes cut away some of the frt frame in the crush zone to raise ur bumpers up
Its pretty straight forward just fallow the instructions. if its 4x4 you will need to extend the linkage. There is no need to extend the throttle cable.