Same exact issue except my 2020 has 81k miles now, completely trouble free except just recently noticed a pop/clunk noise from front left wheel area when in 4a @ very low speed…after lots of research I have high confidence it’s a minor issue potentially front differential mounting hardware loose….i have owned mine outright for the last 2 years, all the fluids been changed regularly, has some mods, replaced the brakes @ 68k miles & tires are also fresh. Being a late 2020 build I’m very confident the drivetrain has most/all of the gremlins worked out.
Only “problem” I really had that got me considering trading for a new one is @ this point all 4 of my shocks will start buzzing @ startup - mainly the tears but sometimes the fronts…I paid $68k for my 2020 801a (I think- has big screen & leather seats but not all the tech/ luxury options), it’s tuned, I was reminded how much less peppy a stock tune (even gen3) truck can be & as of now ‘23+ can’t be tuned. So I made my decision- I have a set of rebuilds from Hammer, deaver +3HD springs, strike plate kit & a set of icon ACC collars ready to get installed in the next week or so….w/ all the parts + install probably run me about $4200….better than dropping $10-15k down payment + my paid for 2020 on a new ‘24 & still wind up having a $25-30k note w/ BS interest rate.
So my vote is keep it- especially since you have that warranty & it’s a late 2020 build. IMHO gen2 > gen3 from exterior perspective, simply looks more aggressive/wider/chunkier, but the gen3 > gen2 from interior/tech perspective & the coil rear is nice, the lack of tuning (& high cost for the 21-22 tune) & potential QC issues is a factor too.
And lastly- yeah- swap out the tranny fluid if you haven’t yet + diffs + T-case, start working on a set of rebuilt shocks, you don’t NEED to replace the stock leafs if they’re not flattened out, it depends whether you tow/haul a lot, but from what everyone says it’s a worthy upgrade even w/ the $1600 cost. For me I do tow/haul fairly often enough which is why my OEM shocks are crying uncle & why I opted for +3HDs