A pricey one but very well designed is the Metalcloak tire carrier. It's meant to carry 35"+ tires but I habe 33" tires and it works great. Had to flip the tire bracket upside down to accommodate the 33" tire but it still works great.
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It fits the TJ really well IMHO. I just love how the corners match up to the tub.
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On the hinge part it has bearings on top and bottom. It is also bolted from the top and bottom.
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It also locks in place when fully opened.
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If it wasn't so darn expensive MC would probably sell quite a few more. So far this thing is solid and I believe it will hold up just fine. I have no issues opening and closing. It's like buttah!