bulwnkl and bbtaco are correct for the atf. have at least 5 quarts on hand (dex III or compatible syn atf) to be on the safe side if you plan on just dumping the fluid. if you want to do a exchange or flush you'll need more, 15 is what most people say. my 4runner dumped a little over 4 qts and was somewhat surprised also when i got that much out the first time. the 4runner and taco guys got the same after i did some research on other forums and is quite easy to do if you want to save some cash. make sure to check and or change the washer/gasket on the plug also and follow a routine schedule and you'll get many miles from your taco. fwiw i use just reg dex III (ace hardware brand (who makes that?)) and it is silky smooth.
regards,mudd
regards,mudd