Tuff country knuckles

howdy guys I got a 2005 taco with a 6” tuff country lift(just found out today that was the brand it is after Toyota found my passenger side knuckle to be “bent”) ( also I’m not exactly sure what a spindle is and from what I’ve seen it looks like they meant spindle but again idk im confused because I see two different things and was told the whole thing was the knuckle) and they have discontinued that lift therefore no more 56900 knuckles.. tuff says their lifts are modeled after pro comp or something and they should have the same dimensions but I need help figuring out wtf to do about this because I’m not sure if they really are the same like they said. I wasn’t able to reach anyone from pro comp so if anyone could help out that’d be great forgive me for I am not mechanically inclined with some things and I’m freaking out about this cause my calipers seized up on me too lol