Do you need to drop the gas tank to install the Dirt Worx tire carriers?
Dirtworx uses the same 3 OEM mounting points, plus 2 more a few inches in-board of the stock ones. I have yet to crawl underneath and check clearance on the two inboard holes. I mounted my Dirtworx using only the OEM bumper mounting points, I decided to let the mud mark the holes for me, so I don't mark them wrong. I'll be addressing this tomorrow, so I'll post up again when I'm done.
Here's a pic of the mounting points I'm talking about:
" ... Nobody said it was a good plan. It's like somebody went through an actual strategy and replaced every instance of the word 'tactical' with 'balls out.' ... "
I've got a "loaded" Dirtworx rear bumper/swing-out tire & gas can carrier on my '06 LJ and I did not have to drop the gas tank. In fact Robert assured me I would not have to prior to my purchase. Of course, with the gas mileage I get, I'm not sure i'd even notice four extra 7/16" holes in my gas tank
The spare is noticeably higher than stock. I doubt you'd need or want it any higher.
I keep two fully loaded NATO cans on mine and it has taken some VERY hard hits on trails with NO damage other than to the bedliner finish.
#1 you do not need to drop the gas tank to install the bumper. All you need to do is be careful when you drill the holes. I held a small sheet of steel between the tank and bumper when drilling as an added precaution.
#2 He offers several dif styles of rear bumpers and you do have the option of telling him exactly what you want. I do not like the screw down type so I went with the lever system as seen in my pics above.