*Parts*
Drain and fill:
Transmission pan drain plug crush washer (3517830010)
Transmission pan check plug crush washer (3517830010)
5 quarts of WS transmission fluid

Transmission service:
Transmission pan drain plug crush washer (3517830010)
Transmission pan check plug crush washer (3517830010)
Transmission pan gasket (3516860010)
Transmission fluid strainer (3533060050)
Transmission fluid strainer oring (9030131014)
6 quarts of WS transmission fluid

*Torque Specs*
Transmission fluid strainer: 10 n/m
Transmission pan: 7 n/m
Transmission fill plug: 37 n/m
Transmission check plug: 20 n/m
Transmission drain plug: 20 n/m

*Draining Transmission Fluid*
Make sure the vehicle is cold and on level ground. There are 3 plugs (drain, check, and fill), loosen the fill plug first, loosen and retighten the check plug second, then remove the drain plug completely. You always want to do it in that order because if the fill plug won’t come out or the hex on the check plug is stripped you want to know that before you drain all the fluid and the vehicle is no longer drivable. After the fluids drains put the drain plug back in with a fresh crush washer and tighten it. Move onto replacing transmission fluid strainer, or to directly to filling transmission fluid.

*Replacing Transmission Fluid Strainer*
Unbolt the transmission pan leaving one screw loosely installed at the front and one screw loosely installed at the back. With a rubber dead blow hammer gently hit the transmission pan sideways to break it loose and remove the pan. There will be quite a bit of fluid still in the bottom of the pan. Unbolt the transmission fluid strainer and wiggle it off, this will release more fluid that will drain out the bottom of the filter. Use transmission fluid to lubricate a new oring and install it in the strainer. Push the strainer up into place while gently rotating it back and forth to avoid pinching the oring. Once seated bolt it back into place. Using lintfree rags, clean out the inside of the transmission pan, the magnets in the bottom of the pan, and the gasket mating surfaces on both the pan and the transmission itself. Reinstall the transmission pan with the new gasket making sure to start each bolt before tightening any of them.

*Filling Transmission Fluid*
Remove the fill plug and add transmission with fluid using whatever method you choose. Reinstall and tighten the fill plug.

*Setting Transmission Fluid Level*
On level ground start the engine and let it idle for 1520 seconds. Shift from park, to reverse, to neutral, to drive, then back up through the gears to park and repeat a handful of times, just a couple seconds in each to help circulate fluid. Then let it idle in park and monitor the transmission fluid temperature. You can let it idle in gear or gently brake torque the engine to build up temperature in the fluid faster. When transmission fluid temperature reaches 100105 degrees (official Toyota specification is 4045 C which is 103113 F) let it idle in park and pull the check plug back out of the transmission pan and let the excess fluid drain out. If no fluid comes out the fluid level is too low. Once it slows to trickle put the check plug back in with a new crush washer and you’re done.