Welcome to the North American Subaru Impreza Owners Club Tuesday September 30, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 10-20-2013, 09:55 PM   #1
subarufan555
Scooby Specialist
 
Member#: 255117
Join Date: Aug 2010
Chapter/Region: MWSOC
Location: Chicago ,Illinois
Vehicle:
2004 ANY Subi
ANY

Default Rebuilding 5 SP WRX transmission Help On using 2nd gear

Im rebuilding a 2002 WRX 5 -Sp transmission

This is Early 02 5-sp so it had 1 and 2 gear thinner than late 03 and up WRX

QUESTION is My trans has Bad 2 gears
Can I order a upgraded Thicker 2 gear (it comes with main input shaft) and thicker 2Nd gear that goes on the output shaft and assembly it together and it will work Proper wit the other gears????
* Registered users of the site do not see these ads.
subarufan555 is offline   Reply With Quote
Old 10-21-2013, 07:58 AM   #2
subarufan555
Scooby Specialist
 
Member#: 255117
Join Date: Aug 2010
Chapter/Region: MWSOC
Location: Chicago ,Illinois
Vehicle:
2004 ANY Subi
ANY

Default

Bump....
subarufan555 is offline   Reply With Quote
Old 10-21-2013, 03:52 PM   #3
Storm
Scooby Guru
 
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
Vehicle:
96L Most Over-
Developed Beater

Default

You haven't opened this trans up yet, have you?

Will it work? maybe. Will you be reshimming until it's right? ABSOLUTELY.....

I suggest the LGT gearset swap thread.
Jay
Storm is offline   Reply With Quote
Old 10-23-2013, 09:25 AM   #4
subarufan555
Scooby Specialist
 
Member#: 255117
Join Date: Aug 2010
Chapter/Region: MWSOC
Location: Chicago ,Illinois
Vehicle:
2004 ANY Subi
ANY

Default

I just ordered the right gears and returned the other ones.


Quote:
Originally Posted by Storm View Post
You haven't opened this trans up yet, have you?

Will it work? maybe. Will you be reshimming until it's right? ABSOLUTELY.....

I suggest the LGT gearset swap thread.
Jay
subarufan555 is offline   Reply With Quote
Old 10-23-2013, 11:44 AM   #5
FlatironsTuning.com
NASIOC Vendor
 
Member#: 171650
Join Date: Feb 2008
Location: Boulder, Colorado
Default

Quote:
Originally Posted by subarufan555 View Post
Im rebuilding a 2002 WRX 5 -Sp transmission

This is Early 02 5-sp so it had 1 and 2 gear thinner than late 03 and up WRX

QUESTION is My trans has Bad 2 gears
Can I order a upgraded Thicker 2 gear (it comes with main input shaft) and thicker 2Nd gear that goes on the output shaft and assembly it together and it will work Proper wit the other gears????
Short answer is no. Remember that there are two parts to 1st and 2nd gear. Both driven gears are sold separately , but the drive part of each are integrated to the main shaft. So if you want to change 2nd gear to the later spec, at a minimum, you will need the main shaft as well, and 1st gear to go along with it.

Then there is the issue that you have now put in thicker gears, so you actually end up having to replace a lot of other parts in the case to get the shafts to stack up correctly.

Can it be done? Yes, but it is pretty involved. And at that point, as said above, you may as well just put in the LGT gears, as you will be replacing most all of those parts any way. Then you get better gear ratios, and stronger gears as well.

Just keep in mind that you will have to replace 3 - 4 with the LGT gears when doing the swap. You can put in just 1st and 2nd LGT gears into a WRX transmission, but it is actually even more difficult that what you were initially proposing, and you will have a less than ideal shift from 2nd to 3rd.
FlatironsTuning.com is offline   Reply With Quote
Old 10-24-2013, 06:14 PM   #6
Storm
Scooby Guru
 
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
Vehicle:
96L Most Over-
Developed Beater

Default

I can attest to the dramatic ratio change from LGT 2nd gear to WRX 3rd gear. Also the dumb amount of work to make that combination work! :/

To the OP: Just contact Flat Irons directly. They will set you up with what you want!
Jay
Storm is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 04:55 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.