Same issue here. Noticed a grease spot on the rear driver side inner fender liner. Traced it to the boot on the front CV joint of the rear driveshaft into the transfer case. ~12k miles. Never been off road. Stock height, no lift.
Took a me little while to get this put together but the Oracle fog lights are installed again with the RTR end caps. I left the crash bars out for now but they do fit. STEP files posted below if anyone else runs into this. I had Send Cut Send cut the parts from 11GA mild steel. Here are...
I bought the RTR mod bumper end caps on Black Friday but unfortunately, they don't work with the Oracle bracket designed for factory mod bumper end caps.
Designed a new bracket - had to shove the lights back, up, and space them closer together to get them to fit - will post pics and the CAD...