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Old 05-23-2008, 09:04 PM   #1
fateo66
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Default Whats the difference in the 02-05 vs the 06-07 transmissions

What all is diffrent/better/worse in between the 02-05 WRX transmissions and the 06-07 transmissions?
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Old 05-23-2008, 09:07 PM   #2
DS1
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02'-05' break 1st and 2nd gear most often
06'-07' break 3rd more often

06'-07' received a double coned syncro on 1st gear to make down shifts easier.
late 03 and on changed 3rd gear driven and 3-4 hub to remove the steel ring that used to break.
04'+ the gears widened about 1mm (no there is no increase in strength. )

02'-05' are Pull style clutches, where 06'-07' are Push style clutches.

Late 04' + transmissions use male front axles opposed to early 04' and before using female style front axles.

Final drive changes in 06'+ to 3:70 from 3:54 the years before.

-Dylan @ DS1
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Old 05-23-2008, 09:10 PM   #3
fateo66
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So, because of the diffrent style clutch can you switch a 02 tranny into a 06 and a 06 tranny into a 02?
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Old 05-23-2008, 09:22 PM   #4
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Not without switching the clutch/flywheel/ slave cylinder
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Old 05-23-2008, 09:24 PM   #5
fateo66
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but other then that it will work? Good to know
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Old 05-23-2008, 09:32 PM   #6
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wait! I forgot the rear diff has to be switched too. sorry
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Old 05-23-2008, 09:37 PM   #7
MrSlowbaru
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and you will need axle stubs
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Old 05-23-2008, 09:47 PM   #8
fateo66
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OK, so the rear diff won't be too big of a deal, which axle stubs, the front? will they fit in the exsiting hubs?
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Old 05-23-2008, 10:02 PM   #9
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The front axles are different, aka the female/male note in my first post. You'll either need the front 06-07 axles or a set of 04' 6mt front stubs and seals.
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Old 05-23-2008, 10:15 PM   #10
fateo66
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Ok so this is alot more then I relised I was getting myself into. Basicly what I am doing is; a friend of mine has a 06 wrx with RA gears but the 3rd gear syncro is going out. In stead of fixing it he just wants to trade the car in. We worked out a deal to trade him my 02 tranny that has good syncros for his 06 RA set. But he would like his car to be ready to trade in by monday for all the big tent sales. I can switch out all the stuff needed from the brakes in but I know he will want to keep his 4 pot and 2 pot setup on the car. Is this possible? can I and how hard is it to switch the front axel stubs between the two or can I just switch the entire front axles but keep the hubs and breaks on each car? So I need to switch;

-Tranny
-Clutch
-Flywheel
-Slave
-Rear diff
-Either front axles or just stubs
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Old 05-27-2008, 01:11 AM   #11
fateo66
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Thank you DS1 for all your help over the phone. And just for reference here is some side by side comparison pictures.













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Old 05-27-2008, 08:51 PM   #12
MRF582
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Quote:
Originally Posted by DS1 Motorsports View Post
Final drive changes in 06'+ to 3:70 from 3:54 the years before.

-Dylan @ DS1
Close. 06+ went to 3:70 from 3:90. The (02-05) rear diff was a 3:54 with a center diff ratio of 1.1 to 1 instead of the traditional 1:1.
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