sorry i just said flush because it's a M/T, but just an oil change. I've done a transmission fluid change on many different toyotas, I know what's involved. My tacoma is the biggest bitch of them all. I usually just remove the shifter assembly, sit down in the passenger seat of the car and pour on in. And still this is less than 2 hrs including jacking up the car and using manual tools in an alleyway with a flashlight.
As for the grind, it will grind only in second gear at any rpm, with or without a load on the motor for the first approx 20-30 mins of driving, then it seems to go away except for the occasional "clunk." The harder i drive it the better (maybe it's a sign). If I open the garage, it's 70 degrees + outside, i warm up the car for 5 mins, then drive slowly, no matter what i get a grind - especially when there isn't a load on the tranny, like a soft and slow shift at 2k rpms going under 20 mph.
Longo straight up tells me they could give a shit while im there, and i just got an email from the guy providing $400 quotes asking how my car is doing... lol
I'm not terribly worried, the grind isn't horrible and ima swap fluids and see how it goes. The blowing hot air is kindof annoying tho