just wondering if you need a special tool or somthing to remove the drain plug it looks like it need some type of square shaped allen key.

try the half inch drive on your ratchet

Spiner Hendel or BOX wrench is handled.
12.7mm
Let's try.

i just checked my diff oil level in my 620 & all i used was 1/2 inch ratchet fitted straight in try it

thanks for the tip guys

Getting the fluid out is the easy part. Refilling it is the tricky part, unless you have some sort of pump.

Blood transfusion I hope this helps getting the oil back in.

I did it this way recently (with the use of a compressor) - although I think the compressor is still a pretty good idea.

The pressurized jar is a sweet idea! Never even thought of that. I'm going to make one this weekend. BTW, I have a CokaCola type shelf myself. Sometimes dumpster diving turns up some rare jewels!!

if you can't get the drain plug out ( someone wrenched mine in ) you can siphon the oil out over night and then replace it. ( not quite as good as a real drain, but when you can't get the plug out it's better than nothing. )