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
- - - - -

Parts compatibility between Outback and Forester


  • Please log in to reply
8 replies to this topic

#1 lostinthe202

lostinthe202

    Currently Lost in the 510

  • Members
  • 1,094 posts
  • Oakland, Ca

Posted 27 October 2009 - 07:21 PM

Looks like I might be coming into a 2000 forester for a super (free) good (free) deal.

Obviously at that price, it needs a few things.

T-belt service is due
Pass. front wheel bearing needs replacing
Rear differential is bad.
Pass. front CV joint is bad.

I'm wondering about the rear diff and the CV joints. I've got a '96 OBW that is hurtin' in a few ways of it's own. The exhaust, brakes, interior are all in need of serious help, as well as rust that is starting to develop.

The CV axles on my OBW aren't that old and dealer units So i'm wondering if the length, spine count/diameter are the same between the two.

Also, are the diff's the same? I know they are the same ratio (4.11) I'm wondering if everything else is the same?

I'll go with a new wheel bearing, but I'm wondering if my OBW can be an organ doner in those other areas.

Thanks!

Will-

#2 zyewdall

zyewdall

    Subaru Master

  • Members
  • 2,132 posts
  • Ward, CO

Posted 27 October 2009 - 07:27 PM

Hmmmm. I think that the Forester shares more with the impreza than the outback, which I believe is a little wider (and might have longer axles). But, I haven't played mix and match with these newer ones very much, so I'm not sure.

Z

#3 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 19,352 posts
  • WV

Posted 27 October 2009 - 09:48 PM

axles are the same. only thing i can think of is axle designed changed around 2000-ish, not sure exactly when though.

but you're still probably safe - the only difference is in the tone ring. on older models it's part of the hub on newer models it's part of the axle.

thing is - the axles are still interchangeable to some extent. the newer axles are nicer (more convolutions on the boots) so i knock the tone ring off of newer axles and install them on older subaru's. it's just an aluminum ring and easily slides off the end of the axle.

so...i guess the opposite should work - install the tone ring onto your older axles. then again - the 2000 might be just before that change took place, not sure, but either way it should work i do it all the time.

as for diff, as you know gear ratio is the only question. will depend on auto verses manual, i would assume the forester is manual like your OBW? if that's the case the forester is probably 4.11, not sure about the OBW but it'll be either 3.9 or 4.11. if you have the EJ25 OBW then i bet they're the same, but check first.

if you're looking into swapping parts the entire hub assembly/front spindle should interchange with your OBW as well so you can just swap that too.

SOHC timing belts are EASY! woo hoo! easier than the older DOHC stuff.

be careful with H6 stuff when looking into 2000+ interchangeability, they do have some differences.

#4 subaru360

subaru360

    has no catchy title

  • Members
  • 1,282 posts
  • Fleetwood, PA

Posted 27 October 2009 - 11:30 PM

Looks like I might be coming into a 2000 forester for a super (free) good (free) deal.

Obviously at that price, it needs a few things.

T-belt service is due
Pass. front wheel bearing needs replacing
Rear differential is bad.
Pass. front CV joint is bad.

I'm wondering about the rear diff and the CV joints. I've got a '96 OBW that is hurtin' in a few ways of it's own. The exhaust, brakes, interior are all in need of serious help, as well as rust that is starting to develop.

The CV axles on my OBW aren't that old and dealer units So i'm wondering if the length, spine count/diameter are the same between the two.

Also, are the diff's the same? I know they are the same ratio (4.11) I'm wondering if everything else is the same?

I'll go with a new wheel bearing, but I'm wondering if my OBW can be an organ doner in those other areas.

Thanks!

Will-


Good news, all the parts are the same axles, diff and bearing/spindle.

#5 lostinthe202

lostinthe202

    Currently Lost in the 510

  • Members
  • 1,094 posts
  • Oakland, Ca

Posted 28 October 2009 - 06:42 AM

.... i would assume the forester is manual like your OBW?


Hmm... actually now, the Forester is an auto, forgot to mention that part. But, if I get into this, it's going to become a manual. I can't handle auto's they drive me crazy (no pun intended ;) )

If I do this, my crackpot scheme is to put my OBW's trans into the Forester. I remember reading that a '96 era EJ trans will bolt to a 2000 era EJ25 you just won't use all the bolt positions in the engine.

I'll modify the driveshaft if I have to then have the shebang balanced at a shop when I'm done.

So basically, the OBW trans and diff, so I know the ratios will match. I just didn't know if the rear diff would bolt up to the forester or if the spines for the rear DOJ's would match. Maybe even use the OBW driveshaft and save the... ehem.. balancing act?

I'll start other posts about all that stuff as it comes up.

if you have the EJ25 OBW then i bet they're the same, but check first.


Nope, the OBW is a 2.2L

if you're looking into swapping parts the entire hub assembly/front spindle should interchange with your OBW as well so you can just swap that too.


Sweet!

be careful with H6 stuff when looking into 2000+ interchangeability, they do have some differences.


Thanks for the warning, I'll keep it in mind.


Good news, all the parts are the same axles, diff and bearing/spindle.


Double sweet!!

Thanks ya'll

#6 guydakine

guydakine

    New User

  • Members
  • Pip
  • 9 posts
  • Paia Maui

Posted 16 December 2009 - 01:25 AM

Hi, could anyone tell me just what years are compatible or is there a "cross reference chart" of what engines and transmissions are interchangeable and what years and models as well?? Here's what I've got and what's available, I've found an '02 Forester in need of a trans for cheap, and luckily I've found a trans locally for a fair price as well. And, a '96 Outback is also availble that has a 2.5 engine and auto trans, could the '96 trans fit the Forester?? Same engine? Same bolt up? Any help is much appreciated. Thanks, aloha..

#7 lostinthe202

lostinthe202

    Currently Lost in the 510

  • Members
  • 1,094 posts
  • Oakland, Ca

Posted 16 December 2009 - 06:46 AM

Hi, welcome to the forum. Auto trans or manual trans? Either way, it should physically fit but the bolt pattern in the '02 has some extra bolts that you wouldn't be able to use with the '96 trans. If it's an auto, I can't speak to TCU, ECU, switch compatibility as I don't know squat about them.

I suggest you do some searching. Use the the advanced search option as the normal search function sucks.

I also suggest you start a thread so you'll get more responses to your question.


Will-

#8 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 19,352 posts
  • WV

Posted 16 December 2009 - 09:49 AM

open ended questions don't cut it here, it's not that black and white. every swap requires some tweaking - some 2 tweaks - some 10 - some more difficult than others.

96 and 02 are different EJ25's - 96 is Phase I 02 is Phase II. They don't swap without some serious tweaks.

The transmissions will bolt up but not sure about swapping, there were some changes and there are some differences.

#9 johnceggleston

johnceggleston

    Lite Master of the Subaru

  • Gold Subscribers
  • 6,087 posts
  • Virginia

Posted 16 December 2009 - 11:04 AM

the o2 auto trans is way different than the 96 auto trans. they added several more speed sensors to the trans and the wiring harness / connector is different. so that is a no go swap.

generally, you have a better chance of a swap if you stay in your 5 year model group, such as 95 - 99 or 00 - 04, etc.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users