I was wondering if anyone knew what the sizes of the differential fill/drain bolts were because I have to go to the parts store to get the right sockets in order change the fluid. Thanks.

 

Drain is 24mm socket.
Fill is a 23mm wrench (not enough room to fit a socket). I use an adjustable wrench. The crappy part is I can't tq it to spec.

 

There is a higher chance of rounding off the bolt head corners with an adjustable wrench. Best to just get a 23 mm closed end wrench to do the fill bolt.

 

You might also want to get a rubber mallet at the parts store. It helps loosen the fill bolt if you can't get enough leverage with the wrench alone.

 

snap on makes a 23mm 3/8" drive 6 pointed socket that fits in there fine on a 3/8" socket wrench. i know cause my stupid boxed end 12 point wrench rounded off the fill bolt. but the 6 point socket works fine on it.

 

Yikes, now I'm scared! I'll look into a 23mm wrench. I couldn't find any when I was looking, so I went with the adjustables. I did have a pretty hard time loosening it.

 

huh?

http://www.sears.com/sr/javasr/product.do?...pid=00945957000

or

http://buy1.snapon.com/catalog/tools.asp?t...re=snapon-store

and at the bottom change to shallow 23mm 6 point

either one works. i've used both. the combo wrench can round off the bolt. i use the 6 point socket now. this is for the fill bolt. the drain bolt is easier to get off.

 

Like many of the metal fasteners on this car, even though they are "low torque" bolts and nuts, they tend to stick onto the mating surface via galvanic corrosion. The diff fill bolt is no different in this regard. These need to be "snapped" to loosen. IE, you need a good wrench on it that grabs it really well, then you give it a sudden jerk (or whack with a rubber mallet on the end of the wrench) to break this corrosion. After the initial snap, it will unscrew very easily.
Don't over tighten as the washer on the fill bolt is one of very few on this car that has a copper-like construction. It will squish very easily. Just tighten by hand as hard as you can, then put the wrench on it and give it another 1/8th turn and leave it. Afterall, it's a fill bolt and it's not holding back any weight of fluid like the drain bolt has to.