I like the rectangle taillights better than the 4 roynd taillights. Now they make flat panel LEDs that look great and are vey bright.
You will need to get a trailer 4 flat converter to make the 2 taillights work. 18 bucks at AutoZone. Tailights were 40 a piece on Amazon. No cutting was required and i used aluminum flat metal to clamp the light in place.
I opened the wiring harness near the battery to install the fkat 4 converter. I will post more picks of the details if anyone is interested.