TominPT

There are some good videos, no need for pictures IMHO. Procedure is similar to the one here.

TominPT

I just did this service today, using the raising and lowering of passenger side rear as mentioned by Gronemous in a previous post. It worked fine for me. In post 27 one of the users mentioned using a T50 bit to loosen the plugs. The top and bottom plugs are both 10 mm hex, as stated previously, and if you can't get the hex 10 mm bit to seat you need to clean out the plug and wiggle the bit so it seats fully. My fluid looked factory fresh at 135,000 miles ('05) and no shavings on the magnet, but I am glad I did it anyway.

Commuter

Just did my diff fluid on a 146k mile 2005 LS430.

The 10mm hex wouldn’t fit, but a little hit from a torch and then light hammering made it seat. When both the drain and fill bolts were removed, I cleaned them up on a wire wheel and dunked the top in the old diff oil to hopefully slow down future rusting and re-torqued to 39 ft/lbs.

The local Toyota dealer carried the washers as it’s a common Toyota part, part number 12157-10010. After looking at the new ones, these are not your standard crush washer and I’d definitely recommend replacing, as you’re only doing this service 1-2x in the car’s life.

https://autoparts.toyota.com/product...lug-1215710010