It can be a PIA for sure. Pickle fork, PB, TRE seperator, and heat are all your friends here. Since it sounds like you're replacing everything all at once like you should, go to town on it. You aren't saving it for anything, so beat it until it complies.
Correct
Correct
Yes, they will fit. It's been a bit since I did this, but the only part you should avoid is the ZJ's drag link (which you already seem to have covered based on the first part of your post). I read your questions quickly, but it looks like you're ready to go. Good luck and ask questions if you need help.
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