I took a look and didnt really see any write ups explaining how to do it so im going to write one up.
First remove the old taillights by removing the two 8mm screws, Then pull on the taillight to free it from the clips. *note*
sometimes they like to stick so when pulling be ready for a sudden release.
You are also going to need to buy 2 new light sockets because the new taillights will have smaller holes and the stock 99-07 are too big. you can get the parts at autozone Dorman Part #85814 I also recomend buying the 922 lightbulbs since they are much brighter
Next you have to take the sockets and cut down 3 of the tabs on the side. they will not fit unless you do so. you do not need to cut off alot, If you have trouble getting them to twist in bend the base of the socket up a little to give the tabs more room to fit into the taillight
Cut the old reverse light socket off and expose the wires on the new socket and on the wires coming from the truck
You can connect the wires however you feel by soldering using butt splices ect. polarity is not an issue. I chose to use solder and shrink wrap for durability
After that install the socket into the taillight and install! the new taillights will be a perfect fit and should not give you any issues going back in. Make sure the 4 tabs on the taillight line up with the holes in the truck.
Enjoy your new taillights