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Old 02-26-2019, 12:01 PM   #301
T-37
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Quote:
Originally Posted by fartbox420 View Post
So i bit the bullet and ordered a 2015+ STi rack. i was wondering if anyone had updates on how well the spacers are working for you? has anyone changed the dimensions?
This may or may not be relevant. You may have to add a washer above each bushing, or you could probably grind down that boss if it's touching the subframe.

Quote:
Originally Posted by T-37 View Post
Minor update. 2 seasons ago, I pulled the OEM bushings out of the 2015 rack and installed some homemade solid bushings. Since then I'd developed a popping noise, when changing directions that coincided with wheel bearing failures. But after the bearings were replaced the noise persisted, so I did some more digging.

I found 2 problems:
1) my custom solid bushing were about .020" undersized, leaving a fair amount of side to side play (likely the problem)

2) the raised boss on the top side of the rack was contacting the subframe (also a problem).

http://i.imgur.com/hEXfW4i.png

I remedied both of these problems by reinstalling the bushings wet with some urethane, and using washers on the top side to space everything back down. There are no noises now.

I don't remember for sure if I had this popping noise before when I just had the OEM bushings in the '15 rack. BUT for anyone who has that noise, take a look into it, you may have to shim the rack down.
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Old 02-26-2019, 02:26 PM   #302
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Quote:
Originally Posted by T-37 View Post
This may or may not be relevant. You may have to add a washer above each bushing, or you could probably grind down that boss if it's touching the subframe.
Thanks for the heads up, i will take a file to that raised section if thats the only thing that rubs.

I have been looking at pump replacements. What do you think of re-manufactured pumps? There are a few companies that sell re-manned 08 Sti pumps for only around $250 Canadian on RockAuto. could save people a lot of money doing this swap.

Edit: A re-manufactured pump is probably not the best bet. Kind of a crapshoot whether it works well or lasts more than six months.

Last edited by fartbox420; 02-26-2019 at 06:49 PM.
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Old 02-26-2019, 06:52 PM   #303
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Sorry late to the thread. Recently while researching STI swaps for my GD I ran across this data base.: http://www.spec-c.com/spec-c-quick-rack-steering/

According to this info the STI's in 06 and 07, plus a select few earlier models had the 13:1 ratio.
I didn't read all the way through all these pages... seems like it would be a lot easier to just source the appropriate STI rack?
What am I missing?
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Old 02-26-2019, 07:49 PM   #304
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The spec C was sold in RHD markets. There were some quick ratio LHD racks for group N, but they are quite expensive http://www.rallispec.com/sus_ste_rst3474.html . The USDM 2015 STI rack is 13:1, LHD, relatively cheap and available at any Subaru dealer.
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Old 02-27-2019, 08:45 AM   #305
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Edit: So the std STi 13:1 only applies to RHD markets?

Last edited by pazzoduc; 02-27-2019 at 09:24 AM.
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Old 02-27-2019, 10:04 AM   #306
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I'm not sure what market that list is compiling. There were no 13:1 steering racks available standard on Subarus in the US market until the 2015 STi. The 02-04 WRX had something like 16.5:1, all GD and GR STI and 05+ (or was it 06+?) WRX had 15:1.
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Old 02-27-2019, 10:44 AM   #307
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Interesting. THX!

Edit, So the rest of the world that got LHD cars are all USDM spec?
Seems odd.
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Old 02-27-2019, 11:46 AM   #308
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I believe the 13:1 was only in the Spec C RHD models, not all of them.

Hey T-37, have you read anything about a restrictor in the stock STi High pressure line? I read the old STis had them to prevent fluid foaming and noisy rack/pump.
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Old 02-27-2019, 01:44 PM   #309
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Quote:
Originally Posted by pazzoduc View Post
Interesting. THX!

Edit, So the rest of the world that got LHD cars are all USDM spec?
Seems odd.
I don't know what other LHD markets got. If there's something out there, nobody has found it yet, or if they have they haven't shared that info. If you can find a P/N for another stock LHD 13:1 rack that isn't 3 grand please share it.

Quote:
Originally Posted by fartbox420 View Post
I believe the 13:1 was only in the Spec C RHD models, not all of them.

Hey T-37, have you read anything about a restrictor in the stock STi High pressure line? I read the old STis had them to prevent fluid foaming and noisy rack/pump.
There is an interference between the hardlines when you connect them to the 2015 rack because the clocking of the hardlines is different. This causes the lines to touch each other and the downpipe. Some people have bent the GD hardline in order to clear the downpipe.

At the other end where the line goes into the pump can be an issue if you switch to a later model power steering pump.

I'm using an AN line for the line from the pump to the rack to avoid both interference issues.
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Old 02-27-2019, 01:55 PM   #310
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Not interference, but a small hole built-in to restrict flow at the fitting, some say the pump itself has a flow regulator to prevent too much flow during high rpm. I know with the newer pump it has the side feed. so i plan to use AN lines and modify the plastic turbo inlet if i had to. I just want to avoid fluid foaming.
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Old 02-27-2019, 02:54 PM   #311
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Yes, interference between the 2 lines. Yes I know about the restrictor, but fitment was the reason for using an AN line. See below

Quote:
Originally Posted by T-37 View Post
Yes, they should work just fine. The main issue with the lines is that the large/small hardlines switched positions on the rack, so the stock hardline ends of the GD hoses interfered with one another and the downpipe.
Quote:
Originally Posted by T-37 View Post
Yep. The threads are still the same, and the high pressure/low pressure lines have 2 different sized fittings. It should be as simple as disconnect/reconnect if you're using braided lines.

With the stock lines it's more difficult because the ends of the lines are solid.

http://i.imgur.com/o4m2osE.jpg
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Old 03-01-2019, 02:30 PM   #312
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ok, i may have missed it but what AN fittings you are using at the rack, are they straight? or 90 degree?

Also in the steel lines DIY, it says at the end of the lines at the rack it uses a M14 Female to 6AN Male, shouldnt it be a M14 Male o-ring to 6AN male screwed into the rack, hi pressure side?

Edit: Is this DIY to make lines that go to the hardlines on the rack? not to the port on the pinion housing? thats the only way it makes sense to me.

Last edited by fartbox420; 03-01-2019 at 02:41 PM.
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Old 03-01-2019, 02:45 PM   #313
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Straight fittings, read post 2, don't use the Fragola o-ring fittings...

Edit: use the Russel

Quote:
Originally Posted by fartbox420 View Post
Edit: Is this DIY to make lines that go to the hardlines on the rack? not to the port on the pinion housing? thats the only way it makes sense to me.
Yes

Last edited by T-37; 03-01-2019 at 02:57 PM.
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Old 03-20-2019, 09:07 AM   #314
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Quick questions for all of those who changed the inner tie rod ends, did you tighten the steering gear clearance as instructed by the manual or not before changing them? Most DIY skip that steps, just want to make sure it's safe to do so on the 2015 rack. tx
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Old 05-14-2019, 09:20 PM   #315
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There are a number of these racks appearing on ebay with inner tie rod damage. Obviously pulled from 2015-present STI's that were likely totaled. They are usually very low mileage and half the price of a new rack. Obviously it's a bit of a risk, but my feeling is that if the rack/pinion gear assembly operate smoothly throughout it's range of motion then it should be ok. Such an impact should either do damage immediately or not at all.

Has anyone else gone this route?

Well I finally got around to installing this eBay tafeoff rack in my 03 wagon, I went the re-use your inner tie rods route since one of the inners from the STI rack was bent.

Having access to machine tools I actually recycled the new racks old inner tie rods to turn (haha literally) into thread adapters!

Since my pressure hose was leaking I also installed a iag stainless house and re bent the return hose Hardline to fit.

This was a very much needed upgrade, it's so much better than my 340,000km old slow and loose rack!

Some pics below:
https://photos.app.goo.gl/Lzbv18fe4KSyGKtVA
https://photos.app.goo.gl/oSCbu35NuGwNMXbM7
https://photos.app.goo.gl/qu2RdvoRSsf6htyh8
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Old 05-15-2019, 03:18 PM   #316
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Quote:
Originally Posted by smoky View Post
Quick questions for all of those who changed the inner tie rod ends, did you tighten the steering gear clearance as instructed by the manual or not before changing them? Most DIY skip that steps, just want to make sure it's safe to do so on the 2015 rack. tx
Hmmmm, can't say that I've heard of folks doing this on late model Subarus, especially on what is essentially a brand new steering rack. The guys on my Tercel forum do it all the time, however.
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Old 06-23-2019, 11:25 AM   #317
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Here's a second install that I've just finished today, if the photos might be of any service.

https://www.subarufanclub.ro/forum/index.php/topic,3381.msg121158.html#msg121158

An EDM 2001 wrx wagon with a complete JDM V7 swap. Meaning sedan lower arms.
All went smooth, no problems at all.
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Old 06-23-2019, 11:40 AM   #318
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Quote:
Originally Posted by DanSSS View Post
Here's a second install that I've just finished today, if the photos might be of any service.

https://www.subarufanclub.ro/forum/i...html#msg121158

An EDM 2001 wrx wagon with a complete JDM V7 swap. Meaning sedan lower arms.
All went smooth, no problems at all.
So if my memory is correct, you did not have to do any modifications to the inner tie rods because you are sedan width right?

Also, whats that nifty kit for with the brass spacer? Besides the spacer.
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Old 06-23-2019, 12:00 PM   #319
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Correct, you don't have to modify the inner rods never. Look a few pages behind at my first install, on my wagon-length arms. I've used Subaru Leone outer rods.
All the information is here.

The "kit" as you call it includes:
- post 2004 subaru longer bolt for the driver's side, non-spacer side
- 60mm M10 with 1.25mm pitch and 10.9 hardness for the drivers side, spacer side
- brass spacer so it won't rust
- split pins (not sure on my choice of words) for the outer rod nut fixation
- steering fluid.

For EDM, that's all you need. For USDM, I take it that you guys have weird steering lines.
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Old 07-07-2019, 03:55 PM   #320
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Quick update on the super-slow GC chassis install: Got the EA81/82 outer tie rod ends and installed them after trimming the inner tie rod down by about ~1.7cm. Looks like I should now have the adjustability I need!

Will update once everything’s back in the car.
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Old 08-20-2019, 11:03 AM   #321
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I've tried to read everything. Just for my clarity in that I am understanding everything.

I have a 2005 GD STi. In order to make this all work I would need the following to be done.

1. Purchase 2015 STi steering rack.
2. Enlarge the hole in my subframe to make new steering rack "fit".
3. I would need a different bracket/spacer due to the offset of the new steering rack in order to bolt into the current holes.
4. I would need to finder shorter tie rods (cut the longer 2015 tie rods, or use my existing 05' GD tie rods as long as they are in good condition w/ adapters?)

This is what I am getting confused about.
1. Do I need different fittings since the lines are going to be slightly different location/angle. I've read that people bend the stock lines slightly but that needs to be done gently not to cause problems/kinks, or purchase new adapters so that no bending is required?

2. I also read the 05' Steering rack top gear/knuckle is longer than the 15+, so is an adapter needed?

3. Does one need to buy the new power steering pump? Does this go hand in hand with ANY shorter steering rack ratio? IE: If you replaced it with a q-rack would you still be replacing the power steering pump to a higher output one?

I don't mind taking everything apart. My fear is that I miss something simple which causes a nightmare of an install..lol

This thread is filled with a ton of info and I'm trying to make sure I understand everything 100% before buying everything then finding out, welp crap. Doesn't work because this or that...etc.

After some research it seems that this is going to be $1,000+ plus the time in finding fittings, s/s hoses for the power steering pump, etc. Why would one not go with something like this and it would just be directly bolt in and everything?
(picture attached, not affliated with them at all, just searching for *Subaru quick steering rack)

https://www.facebook.com/pg/PRSqstr/...36814907&rt=39



Much appreciated!

-Nigel
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Old 08-20-2019, 12:21 PM   #322
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No, the 05 subframe is different, and the rack will not fit due to the crossover hardlines of the rack interfering with the subframe. Info in this thread only applies to 02-04 sedans. There may be more specific info for the 05-07 cars elsewhere.

When this thread was made, there was a gap in the market for LHD quick racks under $3000. If there's something you see as a more cost effective option go that route, but the 15 rack plus parts should total less than $800
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Old 08-20-2019, 01:08 PM   #323
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i'll add

I installed a 2015 up sti rack in my 2005 obxt , bolted right in , lines worked , trimmed 3/8" off of the inner tie rod ends but didn't need too . all good

thinking of putting one in my 04 sti and thought that the lgt/obxt or 08 up sti lines could be used with a little work or a mix of the gd and other stuff . the high pressure line from the other cars would allow a 08sti up pump to be used also , maybe use that with the gd return line ?
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Old 08-20-2019, 01:16 PM   #324
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Quote:
Originally Posted by T-37 View Post
No, the 05 subframe is different, and the rack will not fit due to the crossover hardlines of the rack interfering with the subframe. Info in this thread only applies to 02-04 sedans. There may be more specific info for the 05-07 cars elsewhere.

When this thread was made, there was a gap in the market for LHD quick racks under $3000. If there's something you see as a more cost effective option go that route, but the 15 rack plus parts should total less than $800
Appreciate it.

I would love to stick with OEM to be honest. I wish there was more info on the latter GD chassis and making the newer steering rack work.

I'm just always somewhat leary of going "aftermarket" when I search on here for the brand and nothing comes up. That's a red flag to me that no one tried or even brought up the brand..etc.

I'm finding tons of wrx's installing this, found the wagon thread but nothing much for 05-07'...go figure.

-Nigel
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Old 08-20-2019, 01:42 PM   #325
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I've seen people say they have done it on the 05-07 cars by swapping AN lines in place of the hard crossover lines, but I've never seen any more detailed info than that, or even a picture for that matter.

FWIW TSSFab make a subframe for the GD that's a direct bolt in for the '15 rack and sheds some weight.
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