The taillights were made by TYC, they have since been discontinued. I bought them from someone on here (sorry I can't remember who) and they are setup for 3 bulb. The reverse lights are so much brighter than the stock ones.
Yea the "guards" on the taillights are just plastic, completely for looks.
Heres a side shot, the bar is just on the bedrails so it doesnt block any of the bed.