I installed new PIAA fog lights (lower) and Pilot driving lights (upper). Each is relay controlled: fogs only on with low beams and driving lights only with high beams. A single dash mounted switch controls auxilliary light operation. I also replaced the headlights with Sylvania Silverstars.
I replaced both shifter knobs with Ractive knobs. The xfer case just screws off and the new one screws on with a plastic insert: the rod cuts threads into the plastic. The trans shifter knob was a simple installation which required ONLY removal of the old knob. I used a 1" threaded spacer threaded onto the rod with a jam nut and a screw/jam nut on the other end for adjustment to the lockout button. Took about a 1/2 hour for both.