Hows your JCR tire carrier doing? I installed mine and I've noticed that it has some vibrations and rattling. The vibrations normally come when Im cruising at a constant speed and I hit the natural frequency of the bumper. If i accelerate or brake the vibes will go away. If I push down on the latch end of the tire carrier, i can clearly see if move up and down which is what leads to the vibes while driving. Also the latch design isn't super tight, so I get some rattling when I go over bumps. Have you noticed any of these things with your JCR tire carrier?