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Old 08-20-2003, 01:33 PM   #1
Scooby Newbie
Member#: 41022
Join Date: Aug 2003
Default Tranny/Diff to fit in 2.2L OBS

Hi guys,

I have a 98 OBS with 58k miles. I did some damage to the tranny while playing in the mud. I planned on taking it to a shop to have the stock tranny fixed (new syncro/shift fork?), but I'm debating the wisdom of repairing such a weak transmission.

I don't have the money for a gearset or a 6MT swap, but I could be convinced to go with a used forester, RS or a WRX tranny.

So far, I have ordered an Exedy flywheel, STi tranny mount, and Kartboy shifter for use with my stock tranny.

The motor is all stock right now, but I am planning on mild boost with a ludespeed stage 2 or a 2.0 swap in the future.

This is primarily street use. Dependability is key.

1) Should I be worried about my transmission?

2) Which tranny should I look at for a swap? Do I need to mess with the rear diff to get them to match up?

3) Will the parts I ordered work with the tranny suggested from #1?

Thanks guys,

edit: just read the FAQ (pull/push type clutch, tranny swapability, etc) - sorry didn't realize it was there. I'm mostly concerned with item #1 since I'm getting different answers from different people.
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Last edited by maharashii; 08-20-2003 at 03:04 PM.
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Old 08-20-2003, 04:32 PM   #2
Member#: 12347
Join Date: Nov 2001
Chapter/Region: SCIC
Location: Oceanside, CA
ECU ReProgramming
Dynapack AWD Dyno


You have a 3.90 rear end. So unless you want to switch to a 4.11 or 4.44 plus and get a matching tranny just get either another 2.2 tranny or rebuild your current one. If you chose to get a wrx tranny you will need to get another clutch/pressure plate because that tranny is a pull type and you now have a push type.

I had my 2.2 tranny in my OBS for 15k miles at about 245whp and 235ftlbs before it went 'POP'

Good Luck

I-Speed USA
[email protected]peedusa.com
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Old 08-20-2003, 06:27 PM   #3
Scooby Newbie
Member#: 41022
Join Date: Aug 2003

I'm shooting for ~180 whp when I go turbo, so hopefully my tranny will hold up.

just to reiterate, can we all pretty much agree that there is no benefit (in terms of handling torque) to switching between 5MT's? Only a 6MT, 4EAT, or new gearset can solve the tranny problem.
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Old 08-21-2003, 03:21 AM   #4
Scoobie Steve
Scooby Specialist
Member#: 2289
Join Date: Sep 2000
Chapter/Region: Tri-State
Location: Bangor, PA
1998 [email protected]
Subaru L Ver 6 STi Type R


I sent you a PM.

The turbo legacy trans will be the easiest way to go. It has the 3.90 gear ratio so you wont have to swap the rear diff. You might be able to use the flywheel you bought if it is drilled for both tubo and NA pressure plates. I have a SPEC flywheel and it has both bolt patterns on it. You will need the hydraulic pedal assembly from any 2.5l suby.

Stay away from the 4EAT it wont even hold stock hp. I worked on 4 this month. A SVX, legacy wagon, forester and a turbo legacy. 3rd and 4th gear always go a little after 100K.

Also get a short shift kit, you lose some leverage and it wont be so easy to break the weak 1st/2nd shifter fork!
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Old 09-10-2003, 06:22 PM   #5
Scooby Newbie
Member#: 41022
Join Date: Aug 2003

so the shop wants $1200 - i need 2nd gear and a synchro.

I'm now actively seeking a transmission (hopefully in Illinois) with a 3.90 final drive, but I'd rather not mess with the clutch at this point.

btw: I installed the short shifter & bushings already, so hopefully this won't happen again
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