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
- - - - -

New sub-frame, rear suspension alignment problems

sub frame rear suspension impreza wagon

  • Please log in to reply
8 replies to this topic

#1 shred_master

shred_master

    Newbie

  • Members
  • Pip
  • 3 posts
  • Plymouth, Devon

Posted 03 December 2013 - 04:56 PM

Hello,

I recently bought a 1999 Wagon Sport, which over the last 6 months has needed the usual basic replacements to combat age. I had to replace the original rusted subframe to pass MOT, and it has caused more problems than it has solved. If anyone is able to help me find the root cause of the problem, I would be forever grateful.

So, sourcing replacement parts, I took the sub-frame with arms, shafts, diff and shocks from a 1994 WRX, replaced the diff with my original to match ratios, and decided to use my original shocks. The idea was I would end up my original diff and shocks, and the rest would be donor parts to change the existing drum brakes to rear discs and solve the rusty sub-frame issue.

Everything seemed to line up and fit into place nicely, no real issues after fitting new flexible brake hoses and rerouting handbrake and abs sensor cables. The issue came once the car was lowered back down onto 4 wheels. Something is causing the rear shocks to rub against the inner arch and against the wheels, but I don't know exactly what is causing it. Comparing the two sub-frames, the seem identical. I wandered if the shock mountings on the back of the 94 disk housing are different to the back of the drum housing on a 99?

I've compared the shocks that came attached the to new frame, the are shorter than mine, and have a wider spacing between mounting bolts.

Please help! The photo's show what came out, and what is now in it's place:

 

Attached File  IMAG0394.jpg   60.75K   44 downloads Attached File  IMAG0397.jpg   68.06K   56 downloads Attached File  IMAG0398.jpg   74.05K   53 downloads Attached File  IMAG0399.jpg   67.67K   40 downloads



#2 nipper

nipper

    Semi Elite Master of the

  • Members
  • 17,908 posts
  • Long Island NY

Posted 03 December 2013 - 07:40 PM

Is it possible the springs are different on the two cars?



#3 grossgary

grossgary

    Elite Master of the Subaru

  • Members
  • 20,498 posts
  • WV

Posted 03 December 2013 - 09:08 PM

does the vehicle sit roughly the same ride height or lower/higher?

 

mounting brackets are spaced differently (new ones are "in" further) or springs are wider

measure both and compare

 

you're not talking about US market stuff so i'm unsure what is/isn't possible but some options would be:

99 rear hub assembly w/ABS?
94 springs on 99 struts?

complete 94 strut assemblies?

 

bashing the area in the inner fender well where it's rubbing might be an option?



#4 1982gl4

1982gl4

    1000+ Super USER!

  • Members
  • 1,419 posts
  • Worcester, VT

Posted 03 December 2013 - 10:07 PM

Not sure about on the older impreza's but on newer ones the strut spacing in the rear is different in sedans and wagons So like this for :l wagon and : l for sedan. What  did you pull the rear subframe out of? I know they made the wrx in both sedans and wagons over there long before we ever got to enjoy them, but using the wrong combo of struts/hubs can cause camber issues. I had a newer impreza wagon in last week that had sedan struts in the rear that caused binding, and some pretty bad noises. 



#5 shred_master

shred_master

    Newbie

  • Members
  • Pip
  • 3 posts
  • Plymouth, Devon

Posted 04 December 2013 - 09:08 PM

Thanks for all the ideas back so quickly! The donor parts were supposedly also from a Wagon, but I have no way to be 100% sure. However, I think the problem is the distance between the points where the shocks mount is wider on the new sub-frame. Unfortunately the old one is in the workshop and needs retrieving before I can check, I will let you know what it turns out to be. Thanks also for the info on the difference between wagon and sedan shocks, I didn't know there was a difference. Would you know if the length of the shocks are the same for the sedan and wagon? If I can change them for shocks from a sedan, it may set them back into the arch enough to solve the issue. Thanks again



#6 shred_master

shred_master

    Newbie

  • Members
  • Pip
  • 3 posts
  • Plymouth, Devon

Posted 10 December 2013 - 04:20 PM

Problem found quite quickly, complete idiot for making a very simple mistake, which shows why you should not rush a job! In my haste, put the shocks back on the wrong side. I noticed when clipping the flexible brake hose, if you look in second and third photos you'll see the brackets to run the hoses through are on the wrong side of the struts! Simple! Stupid! Stupid simple! Thanks for all the ideas / response.



#7 AdventureSubaru

AdventureSubaru

    Subaru Fanatic!

  • Members
  • 1,296 posts
  • Scotts Valley, CA

Posted 10 December 2013 - 09:50 PM

I love when it's just a face-palm and an easy fix. So much better than some obscure difference in parts and a bunch of modification. Congrats!



#8 nipper

nipper

    Semi Elite Master of the

  • Members
  • 17,908 posts
  • Long Island NY

Posted 10 December 2013 - 11:50 PM

No one is perfect.  :clap:



#9 AdventureSubaru

AdventureSubaru

    Subaru Fanatic!

  • Members
  • 1,296 posts
  • Scotts Valley, CA

Posted 11 December 2013 - 02:14 AM

Yah. Been there. Drove myself nuts for about a week trying to diagnose an engine not running right after a swap. Tried sensors, IACV, cleaned the throttle body.... finally realized that I left the O-rings when I swapped the fuel rails over from the old engine.

 

DOH! :eek:







Also tagged with one or more of these keywords: sub, frame, rear suspension, impreza wagon

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users