I have been thinking about starting this thread myself. 2023 402A 3.5 and will hit 77K miles in the coming weeks.
Mods I’ve done:
-DD ditch lights kit right when I got it, no complaints other than it has been hard figuring out the best way to point them because the dynamic projectors are already excellent
-Eibach 2R at 60K, no complaints
-Ford Performance tune at like 55K, it does what I wanted
-Replaced the stock grabbers around 60K with stock size MT Baja Boss, still loving them even with the weight. Grabbers still had some tread left, overall pleased with them for OE tires and thought hard about the load range E version. But the MTBB are better.
-Forscan; removed double honk, added glare free headlights which are awesome
-Minor stuff like wheel well liners, husky mats, black gorilla lugs, DD license plate bulbs, Diamondback cover, lineX lining
Only warranty work done was getting the steering wheel bolt/nut replaced, knocked it loose pretending to be a raptor and hit a hole going too fast.
Recently I’ve noticed some clunky downshifts at low speed, no load and am a little concerned, but the internet abounds with people having the exact same thing with the 10R80 and being told it just do that sometimes. Will still be looking to replace the fluid in the nearish future to see if it has any effect. Resetting the trans using the tuner seems to help for a time but then it seems to relearn the bad habit. So we’ll see.
I intend to take the truck to 200K+ barring any catastrophic issues or a wreck and so far so good. Best vehicle I’ve ever owned.