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Old 11-14-2009, 03:59 PM   #1
04wrxhart
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Default 04 wrx tranny drain bolt size ?

Ive searched for the last hour and couldnt come up with anything. Called the local suby dealer and he couldnt give me a socket size. So can anyone has has ever changed their tranny fluid in their 2004 wrx with a stock 2004 wrx tranny please tell me wither the socket is a 21mm or 22mm ? I dont have either sizes but im going to guess its one of those two. Thanks for the feed back.
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Old 11-14-2009, 04:01 PM   #2
prometheum
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i just drained mine 22mm did it for me
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Old 11-14-2009, 06:35 PM   #3
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Mine was a t70 Torx, not a socket at all...
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Old 11-14-2009, 09:09 PM   #4
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you + ruler = the answer.
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Old 11-15-2009, 01:40 AM   #5
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Quote:
Originally Posted by prometheum View Post
i just drained mine 22mm did it for me
on the 02/03 WRX's its actually 21mm socket, NOT 22mm.

The 04 WRX's use T70 torx like mentioned in 3 post.
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Old 11-15-2009, 06:44 AM   #6
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Quote:
Originally Posted by rexman2002 View Post

The 04 WRX's use T70 torx like mentioned in 3 post.
ORLY? My '04 has a 21mm plug.
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Old 11-15-2009, 11:42 PM   #7
prometheum
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Quote:
Originally Posted by rexman2002 View Post
on the 02/03 WRX's its actually 21mm socket, NOT 22mm.

The 04 WRX's use T70 torx like mentioned in 3 post.
oops
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Old 11-16-2009, 12:52 PM   #8
04wrxhart
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Ya I actually went to the store and bought a 22m socket and tried to test fit it in the parking lot but ended up having to drive all the way home, put the car up on jack stands just to find out that it was slightly to big. There was too much wiggle room to my liking so i decided it would be best to go back and get a 21mm socket instead of stripping the bolt. Any who, i got the fluid all changed out. I used the cocktail sold by Grimmspeed and i'm absolutely amazed with the results. The car shifts like butter now, and the grind i used to have when shifting into reverse has completely disappeared.
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Old 11-16-2009, 01:41 PM   #9
Concillian
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beginning of 2004 model year cars have 21mm bolt
end of 2004 model year cars have T70 Torx
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Old 12-14-2012, 09:35 AM   #10
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Quote:
Originally Posted by Concillian View Post
beginning of 2004 model year cars have 21mm bolt
end of 2004 model year cars have T70 Torx
How can you tell what time of year your Subie was manufactured?
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Old 12-14-2012, 10:55 AM   #11
Tmibiker
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Originally Posted by UnknownAlly View Post
How can you tell what time of year your Subie was manufactured?
There's usually a metal plate inside the drivers side door sill that has a bunch of information on it, including date and month of manufacture. At least that's how it is on my '02.
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Old 12-14-2012, 02:50 PM   #12
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I don't know what date they switched, but just stick your hand under the car and feel for the drain bolt. It's directly under the front drive axles

If it's an "outie" bolt, you need a 21mm.
If it's an "innie" bolt, you need a T70 torx bit.
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Old 12-16-2012, 11:18 PM   #13
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yeah...but what size are the threads???
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Old 12-17-2012, 06:16 AM   #14
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Thanks, I didn't know I could check without having to get under the car #lazy
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