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The stock Front Sway Bar End Links for my 2020 QX80 would be Moog K750146. These are approx. 3.125" long from the center of the bolt hole to the center of the bolt hole. I am going with a 2" lift and custom Dual rate remote reservoir coil overs. It would appear to be prudent to go with 1/2" to 3/4" longer sway bar end links on the front. The rear does not appear to need any changes.
The next size up for Moog would be K750448 which are 3.95"
If you go with a bigger suspension lift, the next size up would be Moog K750159 which are 4.45"
The stock Rear Sway Bar End links are 110 degree offset which is very specific and does not line up with the Armada Rear Driver Side Moog K750797 or the Armada Rear Passenger side Moog K750796. Due to the geometry in the rear, it does not appear I will need to extend the rears.
Affordable Stock part numbers, for my rears, will be BECKARNLEY -101-7049 (Rear Driver Side) and BECKARNLEY-101-7050 (Rear Passenger Side).
These are all my best keyboard guesses. Feel free to correct me if you know differently. I will confirm on this thread once I get it all mounted.