I had the same thing. After inspection I found the steering box bolts to be loose. I had the steering box TSB done prior and apparently they didn't get torqued correctly. Instead of driving back to the dealer I torqued them and the click went away.
Wondering if there is anyone out there that has a firecracker red JT Rubicon with painted fenders and the black cab top with a red topper? Getting ready to order a bed cap (probably ARE) and would like to see what it would look like.