Yes it does. You have to remove the transmission pan and the filter is located inside and mounted to the transmission with two or three bolts. I have a 1995 Avalon and I just replaced my fluids and transmission filter. Pretty easy job.
In the transmission pan
it is underneath the air filter bolted to the firewall on the driverside of the car
There is a screen in the transmission fluid sump but no filter.
where do i fine gas fuel filter on avalon
The filter is located inside the transmission just inside the bottom pan.
The cabin air filter for a 1998 Toyota Avalon XL is located behind the glove compartment. To access it, you’ll need to remove the glove compartment by unscrewing or unclipping it. Once the glove compartment is out of the way, you can find the filter housing, which typically requires a cover to be removed to replace the filter.
1998 international 3800 external transmission filter
its inside the transmission
Remove transmission oil pan for access
You need to use Dexron III automatic transmission fluid
If automatic usually inside the transmission pan
most likely in side the transmission pan