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
- - - - -

Rear disks, gen 1. Possible?


  • Please log in to reply
22 replies to this topic

#1 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 13 April 2004 - 01:45 AM

Is it possible to put rear disks in a gen 1 4wd wagon? Anyone done it? I'm thinking about gettin rid of the drums and swap it to disks. Any clues, suggestions, ideas? Thanks
Russ

#2 GeneralDisorder

GeneralDisorder

    Elite Master of the Subaru

  • Members
  • 20,281 posts
  • Portland

Posted 13 April 2004 - 12:24 PM

Yes - I know a guy that has done it. You have grind a little on something I think.... can't recall exactly, but yes, it will work.

GD

#3 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 13 April 2004 - 05:26 PM

So what all do I have to do? What parts do I need? Just need a little more info on it. Do you recall how did it? Thanks GD

#4 GeneralDisorder

GeneralDisorder

    Elite Master of the Subaru

  • Members
  • 20,281 posts
  • Portland

Posted 13 April 2004 - 06:26 PM

Same stuff you need for a Gen 2 car - disc+hub, caliper, backing plate, and rubber hose...... at least I'm assuming so. Like I said, I've only seen it, but not done it myself.

GD

#5 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 14 April 2004 - 01:05 AM

Hrmm well I guess I'll have to find a set of gen 2 rear disks then.....What car did those come on? Was it even an option?

#6 carfreak85

carfreak85

    EA81T Sherpa

  • Members
  • 4,796 posts
  • Bell-something...

Posted 14 April 2004 - 01:39 AM

EA82 turbo cars had rear discs. If you have a 2WD car you need 2WD turbo rear discs. 4WD needs 2WD rear discs. They were never original on EA81s.

#7 Hondasucks

Hondasucks

    Subaru Technician

  • Members
  • 4,760 posts
  • Vancouver, WA

Posted 14 April 2004 - 03:01 AM

no, 4WD needs 4WD discs, and 4WD discs won't work on an Ea71 cuz the splines are different, HOWEVER, Jason discovered that the FRONT disc's splines are the same, so that would work, you'd just have to figure out caliper mounting, etc...

#8 GeneralDisorder

GeneralDisorder

    Elite Master of the Subaru

  • Members
  • 20,281 posts
  • Portland

Posted 14 April 2004 - 03:08 AM

Yeah - I think that one of the caliper bracket mounting holes has to be ovaled out or something.... just can't recall exactly what he said. Maybe a little grinding too. You'll just have to play around with it.

GD

#9 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 14 April 2004 - 03:15 AM

well would anyone have a front disk setup that is trashed that I could play around with? It needs to be in kinda decent shape, enough where I can modify it and get it to work before I go and get a nicer set. Just in case I screw up. Oh and I will make a step-by-step process so it can be put in the USRM.

So I'd need the calipers and the rotors? Would there be anything else I'd have to get for it?

#10 adaptorraptor

adaptorraptor

    New User

  • Members
  • Pip
  • 1 posts
  • West Texas

Posted 14 April 2004 - 09:21 AM

I've got a 78 Brat with all four wheel disk brakes. Is this a gen 1? Jim.

#11 carfreak85

carfreak85

    EA81T Sherpa

  • Members
  • 4,796 posts
  • Bell-something...

Posted 14 April 2004 - 04:13 PM

Yes, that would be a gen 1 car. Do you have pics of your setup?

#12 lukr

lukr

    New User

  • Members
  • PipPip
  • 11 posts
  • st helens

Posted 14 April 2004 - 08:50 PM

I put rear disk brakes on my 81 gen 1 brat. It was pretty easy all I had to do was grind a notch in the trailing arm for one of the caliper bolts. I got the entire brake setup, calipers. backing plates, hoses etc, off of a 88 4wd xt. Other than cutting the notch it was all a bolt in deal.

#13 bajavwnsoobnut

bajavwnsoobnut

    Insane Rally Freak

  • Members
  • 3,789 posts
  • Milwaukie

Posted 14 April 2004 - 10:22 PM

hey lukr call me! 971-506-7203

#14 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 15 April 2004 - 01:01 AM

yeah gimme more info on the swap. Where did you have to grind the notch? Can you get pics and a more step-by-step follow up? Thanks a million!!!!

#15 bajavwnsoobnut

bajavwnsoobnut

    Insane Rally Freak

  • Members
  • 3,789 posts
  • Milwaukie

Posted 17 April 2004 - 06:07 PM

russ I will call you on details but it is a direct bolt on for yours just that you might need to do some modification if things are in the way (read Dremel)

#16 subawoohoo

subawoohoo

    Eat, Live, Breath Subaru

  • Members
  • 277 posts
  • tucson

Posted 17 April 2004 - 06:28 PM

well hondasucks just said that ya need the front disks to make it work and lukr, you just said that youve actually did it. so are you saying that you did a rear disk to rear disk swap, or did you use the front setup like hondasucks just said was needed? oh well im nice and confused now. im REALLY lookin into this and would like the info. thanks.

#17 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 19 April 2004 - 01:28 AM

cool Jason, I'll get in touch with you about it

#18 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 19 April 2004 - 06:21 PM

Well I just got off the phone with Jason and here is what he said:

You use EA82T rear discs for the conversion. He said that all you need to do is bolt everything in and sometimes depending on the car, there is one bolt that will not go in all the way so then you have to grind a bit off of whatever its hitting so it'll go right in. Parts list consists of... calipers, rotors, and all the bolts from it.

So now I'm gonna be on the hunt for rear discs and do the conversion, take pictures and have it put in the USRM. I am also gonna be having the front suspension swap, seen in one of my other threads, in there also.

#19 v8vega215

v8vega215

    USMB Regular

  • Members
  • PipPipPip
  • 111 posts
  • Portland, OR

Posted 19 April 2004 - 08:33 PM

you need the calipers, rotors, and backing plate off of an 87ish GL10 wagon or equivelent and you will need to grind a little off the top of the trailing arm to get the caliper on and you will need to grind a little off the botom to get the backing plate down. other than that it is a direct bolt on. you will need to plumb your own brake lines. I got my set up this weekend fron the wrecking yard for less than 40$.total bill was 40$ with trailing arms spindles and head liner and mirrors off the 80 brat that was in there.

#20 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 20 April 2004 - 01:25 AM

So I need a set of rotors, backing plates and calipers for an EA82? Do I need the trailing arms or anything else or is it just the parts mentioned above?

#21 v8vega215

v8vega215

    USMB Regular

  • Members
  • PipPipPip
  • 111 posts
  • Portland, OR

Posted 20 April 2004 - 07:19 PM

just the parts mentioned above and a portable grinder is nice but you can easily get to it with a hack saw and some creativity for the clearance issue. well worth the 40$ in my book.

#22 Caboobaroo

Caboobaroo

    USMB Drunk

  • Members
  • 6,905 posts
  • Oregon City

Posted 20 April 2004 - 07:44 PM

well went to the j/y today and they have like 4 sets of rear discs!!! Knowing them, they'll prolly want 70-80 bucks for just the whole shibang.....

#23 bajavwnsoobnut

bajavwnsoobnut

    Insane Rally Freak

  • Members
  • 3,789 posts
  • Milwaukie

Posted 21 April 2004 - 07:40 PM

just the rotors, calipers, backing plates, the lines coming from it (the first and second flex lines and the hard line in between), and the misc. hardware you took off to remove the stuff. If Andrew brings up one of the turbed cars or even the carbed wagon I can point out what I am talking about this weekend or if need be I can try to find some info in some of my repair manuals.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users