I just installed the Dr KDSS BOTCK (using stock bar) after reading some recent posts, and it definitely fixed the rear end, jittery slop I was experiencing after my MT64 lift. I had always thought the bumpy and jumpy rear-end was tire-related (C-rated Toyos, alignment, tire, or improper inflation). Plus, I previously had the Westcott spacers (with un-corrected trackbar), so the feeling of the stock ride was long gone in my memory
I got the standard kit as I had a 3.5” difference between each side
@IntrinoX/BBO gave me the best deal for them (as they hardly go on sale), and they arrived the next day since I’m in CA. The install took about 30 min on my driveway.
Watch the YouTube install video, and it’s as easy as the video. No need to drop the spare or remove any tires.