man, some thoughts here...
I have a 2019 1500 Bighorn I use for towing a camper - Texas to West Virginia, Wyoming, Colorado, etc. Got the truck w/ 17k used from Enterprise. Also, one trip up the Raton Pass - the RPM's and temps were getting up there...
I'm out on summer trp with the camper - truck rubns fine, temps all fine. BUT I am dealing with the 4x4 actuator issue. THAT'S what led me down the rabbit hole and got me here...
My 4wd doesn't work, saw the actuator fix, figured I could do it, but how to relace the fluid? Hmmm, maybe I should check the tran fluid and differentials. Service schedule is 60k. Ooops, I'm at 64k... 65 by the time I'm home...
I would love to do this myself, Seen the PPE post here and watched many videos. Not sure I have the time or patience in case I screwed anything up in the process OR that I'd be the best judge of drained fluid condition, lookig for debris in the old fluid I'm replacing.
I have a great mechanic, but he may be a bit busy...