So i'm getting ready to purchase new tires (EXCITEDunk and i'm planning on keeping one of my old ones so i'll have a full size spare (running 33's.) I still have the factory bumper and mounting hardware with the factory tire on my jeep and i was wondering if i can mount a 33 using the same hardware. I've looked at buying a different back bumper with tire carrier but their stinking expensive. And i'm a little worried about putting that big of a tire on the back gate and it not opening right. Anyone got some suggestions????