Thinks for the info. I made calls to both racertech and xtreme and according to them it seems to be some differences in the front end between the 12 and 13. The answer i got from Katie at racertech is that they they "thinks it will work", not a sure answer. The answer i got from xtreme is that they are working on it. The back seems to work but the front is different. They are trying the xp front lift on the 800s because it seems to be closer. This week they will have a 800s in so that they can finalize.
I will keep everyone posted on my findings.
I have a rubberdown customs 2" lift on mine and the fronts bound at full droop. It was no big deal but I made some custom limit straps to prevent that from happening.
I am happy with the rubberdown customs 2" lift, rides decent running factory fox shocks and turned preload up a tiny bit for a little more lift it currently sits 14.5" in front and 14" in rear on factory bighorns after settling with about 1/4 to a 1/2 more preload over factory specs.
It rides nearly factory, just a little stiffer but you can always back off the springs a hair. I found that sitting at factory 12.5" I had hardly any preload on the shocks and the thing handled amazing so it was like a win win situation lift when you want and great handling when you want it all with adjusting preload.