Really, you've gone through 2 sets with dropbrackets in a year? Something must be off, I've had mine on for 2 years and haven't touched the bushings. Is everything lined up correctly, arms adjusted properly?
I guess I worded this wrong, this will be set #2 in one year. My arms are not adjustable and everything looks fine and the alignment checks out perfect. Only way I can tell they are bad is when backing up and putting on the brakes the axle moves and thumps around. That and you can see the rubber hanging out from the bushing lol.
I just got back from the parts store. I checked the XJ bushings against the ZJ bushings. The ZJ has a smaller tube to fit the bolt better where the XJ one is a larger opening with the knurls or bumps to locate the bolt. I picked up the ZJ ones and will see how they do. These are MOOG parts.