Trying to drain my ATF, but don't kow what the socket size is for the drain plug. It's one of those T socket thing. Help? Thanks!

Leo

 

http://www.lara.com/cgi-bin/store/co...=7670316.25389

 

Should be a T55

T sizes Inch Metric
1 0.033 0.838
2 0.037 0.940
3 0.044 1.118
4 0.051 1.295
5 0.056 1.422
6 0.067 1.702
7 0.078 1.981
8 0.090 2.286
9 0.098 2.489
10 0.107 2.718
15 0.128 3.251
20 0.151 3.835
25 0.173 4.394
27 0.195 4.953
30 0.216 5.486
35 0.237 6.020
40 0.260 6.604
45 0.306 7.772
50 0.346 8.788
55 0.440 11.176
60 0.520 13.208
70 0.610 15.494
80 0.689 17.501
90 0.783 19.888
100 0.870 22.098