Thanks adventurenali92...
Greg from TG emailed me back and said they don't carry that part (slide arms). So I'm interested in knowing what parts you have with the kit.
He said most customers just remove the deflector. I have looked at both sides and they broke in the same spot. I imagine the constant flexing over 16 years made them break although I bet had I lubed them with silicon grease they may have lasted longer.
Maybe I can salvage a pair from another vehicle, or fabricate something that will work. Or perhaps someone has done this repair and would like to share?