I did this exact same thing yesterday. Only my truck is 2nd gen 4wd v6. I wanted to get 2 tons of pellets but my trailer wouldn't handle it.. I'll be getting 2 more tons soon this time with a tandem axle trailer so I can get 2 at once [emoji106]
Blower motor chirp is very common with the 2nd gen taco. Mine had this issue and I got one from a salvage yard and it was chirping after a month or so. I got an aftermarket one from rock auto now and it's been fine.. I'd suspect the resistor for your other issue but I've only heard about it...
I did this too awhile back.. odd thing is I had 285's with no hub noise.. then switched to 265's and had a bad hum / grind immediately when leaving tire shop.. pretty easy job though to swap the hub
Automatic car wash got mine.. snapped it at the base.. what a PITA. I thought about using the broken antenna to beat the sh"t outta the car wash dude when he said "not responsible ".. but I figured goin to jail would just add to my frustrations [emoji23]. :banghead