Do a search, particularly on a Tacoma forum. Someone somewhere has done this, and taken pictures.
No, seriously. My Tundra has a sealed transmission, probably the same family (I have an A760, you might have an A750?). Goes something like this: drain bolt on the pan. Bazillion bolts around the pan to hold in place. Get a Duralast filter kit, not for the filter but rather for the rubber gasket. Filter is a strainer and doesn't need to be touched; only reason to drop the pan is to get out what sits in the bottom of the pan, and to check magnets. Clean pan, reinstall.
Fill plug on the side of the trans. Get a 1/2" or so ID hose, and snake it up into the engine compartment; shove a funnel into that. That's for filling. Had to dump in what came out with the drop (quart or two).
On mine, I have an external cooler, but there is coolant run to a small coolant to ATF heat exchanger. Which also has a thermostat in it, which cuts off ATF to the external cooler. I had to push in a pin to force it out of bypass mode.
Then I could pull a cooler line, start the truck, and get a qt per minute, some sort of flow like that. 14qt in my system.
When done, I took it for a quick spin, got the ATF up to the 115F or so that it needed to be (as per my Scanguage). Then I pulled another bolt on the pan. No ATF dribbled out, so I pumped a bit more into the trans, until I got a small stream.
Done.
Typing it up makes it sound awful. Doing this work on my Camry, which has a dipstick, was only slightly easier--no temperature checking, but I couldn't read the dipstick after adding ATF, and I wasn't paying close attention to how much came out / went in, so it was just as frustrating.
No, seriously. My Tundra has a sealed transmission, probably the same family (I have an A760, you might have an A750?). Goes something like this: drain bolt on the pan. Bazillion bolts around the pan to hold in place. Get a Duralast filter kit, not for the filter but rather for the rubber gasket. Filter is a strainer and doesn't need to be touched; only reason to drop the pan is to get out what sits in the bottom of the pan, and to check magnets. Clean pan, reinstall.
Fill plug on the side of the trans. Get a 1/2" or so ID hose, and snake it up into the engine compartment; shove a funnel into that. That's for filling. Had to dump in what came out with the drop (quart or two).
On mine, I have an external cooler, but there is coolant run to a small coolant to ATF heat exchanger. Which also has a thermostat in it, which cuts off ATF to the external cooler. I had to push in a pin to force it out of bypass mode.
Then I could pull a cooler line, start the truck, and get a qt per minute, some sort of flow like that. 14qt in my system.
When done, I took it for a quick spin, got the ATF up to the 115F or so that it needed to be (as per my Scanguage). Then I pulled another bolt on the pan. No ATF dribbled out, so I pumped a bit more into the trans, until I got a small stream.
Done.
Typing it up makes it sound awful. Doing this work on my Camry, which has a dipstick, was only slightly easier--no temperature checking, but I couldn't read the dipstick after adding ATF, and I wasn't paying close attention to how much came out / went in, so it was just as frustrating.