Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

Anyone know about adding a dual range transfer case to a 1999 Outback Wagon?


  • Please log in to reply
6 replies to this topic

#1 littlekicker

littlekicker

    New User

  • Members
  • Pip
  • 1 posts
  • los angeles

Posted 13 April 2009 - 09:24 PM

Hey y'all,

been working up my 1999 legacy outback 5MT with various mods. Right now waiting for some custom fabbed lift springs to get done and putting them on with some new kyb gr2's

Does anyone know about whether it's feasible to add a dual range transfer case to this car? I think the ea81's and Ea82s had 5 speed 4x4 dual ranges in them, I also think some markets (UK and AU) had dual ranges standard in some OB's and foresters. I'm not sure what's involved, does anyone here know? Or better question, does anyone here care to chime in?

I know there's adapter plates, and I know I've seen at least one car on one of those car profile sites, like car domain or something...

Thanks a lot, would love to have the lo option I had with my 84 GL...

Edited by littlekicker, 13 April 2009 - 09:29 PM.


#2 s'ko

s'ko

    RIP

  • Members
  • 1,722 posts
  • Los Angeles

Posted 14 April 2009 - 12:12 AM

welcone to the Board
look at the thread that i started recently about tranny options on an ej project. the post by numbchuks has a parts list.

bw

#3 GeneralDisorder

GeneralDisorder

    Elite Master of the Subaru

  • Members
  • 20,279 posts
  • Portland

Posted 14 April 2009 - 06:36 PM

It's a matter of swapping or modifying the entire transmission - the "low range" is not a transfer case at all, but rather a split input shaft that transfers power through a low range gearset or straight through depending on the selector lever. It has nothing at all to do with the 4WD system - in fact you *can* have an EA transmission in 2WD Low (front wheel drive) if you shift in the low range gearset and not the 4WD transfer gear.

I suspect that what you want is something like the european AWD dual-range transmissions but you'll find they are prohibitively expensive here.

Using an EA transmission can be done with an adaptor plate but this has it's drawbacks as well - those transmissions were designed to handle 90 HP in a lighter car and most have hundreds of thousands of miles on them now. Rebuilding them, while possible, is again prohibitively expensive.

You have to ask yourself - how bad do you really want low range in a vehicle that probably doesn't need it? You are looking at several thousand dollars in parts to do it right and a lot of custom labor.... for what?

GD

#4 s'ko

s'ko

    RIP

  • Members
  • 1,722 posts
  • Los Angeles

Posted 15 April 2009 - 10:45 AM

It's a matter of swapping or modifying the entire transmission - the "low range" is not a transfer case at all, but rather a split input shaft that transfers power through a low range gearset or straight through depending on the selector lever. It has nothing at all to do with the 4WD system - in fact you *can* have an EA transmission in 2WD Low (front wheel drive) if you shift in the low range gearset and not the 4WD transfer gear.

I suspect that what you want is something like the european AWD dual-range transmissions but you'll find they are prohibitively expensive here.

Using an EA transmission can be done with an adaptor plate but this has it's drawbacks as well - those transmissions were designed to handle 90 HP in a lighter car and most have hundreds of thousands of miles on them now. Rebuilding them, while possible, is again prohibitively expensive.

You have to ask yourself - how bad do you really want low range in a vehicle that probably doesn't need it? You are looking at several thousand dollars in parts to do it right and a lot of custom labor.... for what?

GD


I wouldn't say several thousands of dollars. So far from the parts that I have gathered I have 300 for EA82 D/R 5 spd tranny, clutch, driveshaft, EA81 Jerry kit, and a bunch of other assorted stuff, the FT4WD tranny I am taking parts off of was from a parts car that I bought for $125 w/no engine. I estimate:
machine work $50.
Adapter plate is $100-180
custom driveshaft $100ish (if I go with the EA center locking diff)
XT6 clutch kit $200 or custom clutch kit $300
if I want to get fancy an OBX lsd front diff for $450
so total with a EA FT4WD D/R w/the 1:50:1 low range, locking center diff, front and rear LSD. $1380.00. Can probably make it an even $1600 for unforeseen problems and some Uncle Scotty's Cocktail ingredients.
This will be going into a 2k OBS w/2 inch lift and forester struts. thinking of running 27-29 inch tires.

re: the EA82 tranny being able to only handle 90 hp of raw EA power, I have a EJ22T in my RX w/the EA82 FT4WD d/r. Been pretty aggressive with the car, hard launches, 1 rally cross and stuff and it shifts like a champ. Car had about 130k on the odo. I think the major limit to the holding power of the EA tranny is the clutch set up. The XT6 clutch is OK so far. We'll see how it continues to hold up.

There is a 565lb curb weight difference between the 99 Outback (3200 lbs) vs the weight of a EA wagon (2635lbs), how of a factor is that remains to be seen.

BTW I see that you are in Los Angeles. I have the tranny taken apart in my garage right now. When I get the upper gearset back from the machine shop, send me a PM if you want to come over and take a look.

BW

Edited by s'ko, 15 April 2009 - 10:58 AM.


#5 bheinen74

bheinen74

    Banned

  • Banned
  • Pip
  • 0 posts
  • central Iowa

Posted 15 April 2009 - 11:06 AM

I would imagine this would be the same process as fitting one to the EG33 in a SVX that is getting lifted:banana:

#6 baccaruda

baccaruda

    YOUR FAVORITE MOD

  • Moderator
  • 6,941 posts
  • SpoVegas, WA

Posted 15 April 2009 - 12:32 PM

To expound on s'ko's points, as an EJ 5-speed's pinion can be swapped into an EA 5-speed to change the ratios, then the guts of each transmission must be very similar (the shape of the bellhousing and the areas to which the mounts attach are different) and have similar tolerances.

#7 GeneralDisorder

GeneralDisorder

    Elite Master of the Subaru

  • Members
  • 20,279 posts
  • Portland

Posted 15 April 2009 - 10:55 PM

I wouldn't say several thousands of dollars.


I was refering to rebuilding the transmission - complete syncro, bearing, and seal replacement in addition to the external parts and the labor.

I was merely pointing out that it would be responsible to rebuild such a transmission if it's going into a heavier car with twice the HP. Many a used transmission can barely shift correctly on stock HP these days. Throw 170 HP at it and watch your investment drain out with the gear oil.....

Uncle Scotty's is also a real bad idea. Especially after $1600 worth of parts. Anytime you mix lubricants you are just asking for trouble.

GD

Edited by GeneralDisorder, 15 April 2009 - 10:59 PM.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users