http://www.quadratec.com/products/12042_6101_07.htm

Its says it only fits with their bumper. I have a rugged ridge bumper and tire carrier. I want a rack similar to this that will work with my setup. Anybody know of anything?

 

heres one that looks just like that!! lol sorry had to do it! any who which rack are you talking about the small basket or the whole roof rack, cause they probly just say that to sell there bumpers too. cause if you look at it the small basket dosnt even touch the bumper and the roof rack connects at the outter edge so if your bumper wraps around you could probly weld on the mounting point for it.

 

Yeah, I don't see a conflict either. Maybe that bumper and swing arm combination gives a certain clearance to the spare. Comparing the pic of yours and the Garvin, it looks like the Garvin mounts the spare much lower on the tail gate. That lower mount looks like it makes the rack able to mount over the spare.
http://www.quadratec.com/products/12232_02_07.htm
That one looks similar and says it fits most Jeeps

 

I have the same bumper and have been eye balling the garvin rack also. In the pics it looks like if the garvin can be adjusted height wise it should work. Let me know how it works out if you pull the trigger.

(ignore angry face, don't know how to edit it out......was an oops w phone.)

 

if you are not running the third brake light, fab up something that goes in the square that will be left open from not using the third brake light, it would be fairly easy and a lot cheaper

 

This found this thread a little disappointing.