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Old 05-22-2016, 10:21 PM   #1
Mitchrod1
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Default 04 5speed trans and diff in a 07 wrx.

Ok so I have a spare 04 5 speed transmission and differential. I have a 07 wrx 5 speed that has a bad transmission and I know it has a 2.5. The spare transmission is off a 2.0. So will I be able to put the 04 2.0 wrx trans on the 07 2.5 wrx? I also have the 04 differential I will be putting in too if it will work. So is there any problems with doing this??
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Old 05-23-2016, 08:40 AM   #2
Mitchrod1
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Bumper
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Old 05-23-2016, 10:23 AM   #3
Samurai Jack
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As long as you swap the transmission and the rear diff together, you should be fine.

Not sure about the axles though. I believe that both the 2004 and the 2007 both use male axles. If true, then you can use your 2007 axels.
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Old 05-23-2016, 10:28 AM   #4
Mitchrod1
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They seem to be the same.. I'm going to call an auto store to see if the part numbers are the same on axles. And post back on that when I find out.
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Old 05-23-2016, 10:50 AM   #5
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Axles are the same part number from 04 to the 07
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Old 05-23-2016, 09:12 PM   #6
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Bumpy bump
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Old 05-24-2016, 08:08 AM   #7
Samurai Jack
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Since they are the same axles, then you should be all set.

What else are you looking for?
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Old 05-28-2016, 03:10 PM   #8
Mitchrod1
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The shifting forks are different and the slave cylinders are in different locations. I would put pictures up but not sure how to sow you what I mean
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Old 05-28-2016, 03:47 PM   #9
machineica
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If both transmissions came from turbo cars then the shift fork and slave cylinder are in the same location.
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Old 05-28-2016, 04:02 PM   #10
Mitchrod1
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Also one seems to be a push type and one is a pull type. Do I need to get a different clutch or will the same clutch work for both?
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Old 05-29-2016, 07:15 AM   #11
machineica
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Clutch pressure plate is different for sure from push and pull type. The non turbo trans has a weaker shift fork design a stamped steel on a small pivot. The turbo trans has a cast fork on a pivoting pin.
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Old 05-29-2016, 03:43 PM   #12
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Quote:
Originally Posted by machineica View Post
Clutch pressure plate is different for sure from push and pull type. The non turbo trans has a weaker shift fork design a stamped steel on a small pivot. The turbo trans has a cast fork on a pivoting pin.
It is a turbo trans with the pivoting pin. So the only difference is the pressure plat or is the clutch it's self different too.. my thoughts is that the clucth wouldn't be different but again I'm not to sure being the trans didn't come with anything to compare them side-by-side
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Old 06-27-2016, 10:48 AM   #13
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Ok just going to put this on here for the help it maybe for someone that wants to back date the transmission in a 06-07 wrx. The 02-05 WRX turbo transmission has a better shifting Fork setup so it maybe wise to do so if you transmission goes out. So the only things need to be done is the clucth set up needs to be for the back dated transmission. Being one is a pull type and one is a push type. Other then that nothing else needs to be changed, UNLESS you get a early transmission with stubs then you may need to get different axles or take the stubs out and get new seals for the male axles. But other then that it is straight forward. They may look a little different being the slave-cylinder is in different places but that is way you need a different clutch setup so you are good to go.
So in short terms remember the clutch needs to be the right clutch for the transmission type, and check your axles, now your good to back date your transmission
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Old 06-27-2016, 05:11 PM   #14
JarHarms
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Default 04 5speed trans and diff in a 07 wrx.

Your update post is decent but omitting the rear diff. I'd recommend caution to anyone using the info further up in the thread. It's disorganized and could be misleading.

Last edited by JarHarms; 06-28-2016 at 03:02 PM.
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Old 08-10-2016, 09:54 AM   #15
Mitchrod1
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Quote:
Originally Posted by JarHarms View Post
Your update post is decent but omitting the rear diff. I'd recommend caution to anyone using the info further up in the thread. It's disorganized and could be misleading.
I agree the last statement made by me with the updated info meaning post #13 . Is the best post of this page to look at
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