I talked to Rock Jock today about what happened and they are going to warranty the link and confirmed it seems the heavy bar 1 1/8” I chose must have reached the max amount of flex as everything else seems to be fine. I didn’t read the fine print and that bar was made for RTT and overlanding style setups.
- Body Roll - Being that this kit features our heavy torsion bar, if this kit is used in unloaded vehicles, you may find the rear sway bar to be stiffer than you would prefer. This kit is intended for use on vehicles that are loaded down with a rack, roof top tent, camping gear, etc. If this does not sound like your application, you may be more of a customer of our lighter rate bar kits (CE-9900JLR4 and CE-9900JLR4A)
Dave
@jeepguru is working with RJ to get the warranty part coming and helping to make my mistake in swapping out to the correct bar as painless as possible

I have learned to check with Dave first for anything I am looking for as he has beaten every other price and shipping speed I have seen! If you are looking for something online I suggest shooting him a message first you won’t regret it.
I will have a basically brand new Antirock rear heavy setup available for a deal very soon