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Old 06-19-2014, 03:33 PM   #1
Klear
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Default STI steering rack into bugeye

So I lucked into an '05 STi steering rack and picked up the STi steering rack joint (solid) to upgrade my bugeye. I also grabbed new bushings for the rack, is there anything else that I will need to swap out,I thought I read about some O-rings that would be better off replaced.

Thanks
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Old 06-20-2014, 10:47 AM   #2
MSo
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You need 05-07 front cross member
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Old 06-20-2014, 10:53 AM   #3
Bikelok
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Quote:
Originally Posted by MSo View Post
You need 05-07 front cross member
Yes, to do it the right way.

It can be done without it though. Many have done so without problems.
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Old 06-20-2014, 03:30 PM   #4
Klear
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Does anybody know which O-ring to order for replacement? Also what length/size bolts do I need to find for the longer side I have to replace (if your not using the cross member). I can find that its fine to do, but that the bolts on the one side are required to be longer, but no indication to the length required.

Thanks
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Old 06-20-2014, 08:55 PM   #5
Klear
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So I got info on the O-rings for the rack lines from the dealer. These are for 05 STi

4x 31260GA030
2x 34123AA040
2x 731259130

No idea on the stock length of the bolts or how much longer the 2 replacements have to be yet
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Old 06-21-2014, 10:16 AM   #6
funk32
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Quote:
Originally Posted by MSo View Post
You need 05-07 front cross member


not true...... sorry been said in the thread already.. didnt read it all lol

Last edited by funk32; 06-21-2014 at 10:19 AM. Reason: info already posted
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Old 06-21-2014, 10:17 AM   #7
funk32
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Quote:
Originally Posted by Klear View Post
I can find that its fine to do, but that the bolts on the one side are required to be longer, but no indication to the length required.

Thanks

Yes that is correct, sorry I cant remember the length either.
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Old 06-21-2014, 10:33 AM   #8
MSo
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Do it in the right way!
Newer mess with brake system, and steering system!!!!
Unless it's factory, or autosport proven !!!
It's your life !!!!
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Old 06-21-2014, 11:34 AM   #9
funk32
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there is no danger when using the older crossmember.. Many people have put q-racks on newer crossmembers but its an 04 STi rack so it only has the 2 bolts.. same idea when putting the 05+ on a old frame, just need to modify/cut the 05+ mounting plate.



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Old 06-24-2014, 04:12 PM   #10
Klear
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I found a source that looks like the 2 longer bolts will be
M10x1.25x50.
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Old 07-23-2014, 09:55 AM   #11
kungfooren
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Going to do an 05+ wrx rack swap into an 04's existing crossmember soon. Thanks for all the part numbers!
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Old 07-24-2014, 01:16 AM   #12
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Sorry to hijack this thread... spent almost two hours searching the forums to no avail.

I just had a friend of mine (who had more time than me) do the same swap (with an 06 STi rack, 05-07 crossmember, and Whiteline bushings) on my 02 wagon. After the install, the steering is loose (as in, it doesn't engage immediately when turning from center position). It wasn't that way with the old rack.

I'm sure there are several things to consider, but does this sound like an installation issue? I haven't had a professional alignment done... so maybe I'm premature in asking.

Thanks for any help you can offer!
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Old 07-24-2014, 05:29 AM   #13
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Quote:
Originally Posted by akblstratton View Post
Sorry to hijack this thread... spent almost two hours searching the forums to no avail.

I just had a friend of mine (who had more time than me) do the same swap (with an 06 STi rack, 05-07 crossmember, and Whiteline bushings) on my 02 wagon. After the install, the steering is loose (as in, it doesn't engage immediately when turning from center position). It wasn't that way with the old rack.

I'm sure there are several things to consider, but does this sound like an installation issue? I haven't had a professional alignment done... so maybe I'm premature in asking.

Thanks for any help you can offer!
Could be install
Could be alignment if toe wasn't returned close to 0
Could be the coupler. You're asking for more output with less input, if it's sloppy you'll notice more of a dead spot, nor is it solid like the Sti one.
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Old 07-25-2014, 09:08 AM   #14
akblstratton
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Quote:
Originally Posted by JonnyV2889 View Post
Could be install
Could be alignment if toe wasn't returned close to 0
Could be the coupler. You're asking for more output with less input, if it's sloppy you'll notice more of a dead spot, nor is it solid like the Sti one.

Thanks, JonnyV! I forgot to mention I also had a coupler from an 04 STi installed at the same time.

I'm getting tires and an alignment this morning. I'll let you know if that fixes it.

Thanks again for the input!


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Old 07-26-2014, 01:15 AM   #15
akblstratton
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Alright... so after new tires and alignment, I see no difference in the steering response. Still has the "hesitation" when engaging from one direction to the other. I'm going out of town for the weekend but when I return will get under the front end and have the missus turn the wheel back and forth to see what kind of play there is in the rack from underneath. Hopefully that will shed some light.

Not that it matters, but before I had the rack installed I put the Whiteline rack bushings on the rack. I noticed the passenger side bushing didn't have the same little "knob" that protrudes through the hole in the bracket as the stock bushing. Is that weird?

Thanks, y'all!
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Old 07-31-2014, 08:39 PM   #16
kungfooren
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Quote:
Originally Posted by Klear View Post
I found a source that looks like the 2 longer bolts will be
M10x1.25x50.
I looked through the catalog for the 05+ and found that the part for the longer bolt is 901000181...

got them in the mail today and it's the same thread as the original but longer and only partially threaded.

Shop is installing next week so we'll see how it goes.
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Old 07-31-2014, 09:39 PM   #17
funk32
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Quote:
Originally Posted by akblstratton View Post
Alright... so after new tires and alignment, I see no difference in the steering response. Still has the "hesitation" when engaging from one direction to the other. I'm going out of town for the weekend but when I return will get under the front end and have the missus turn the wheel back and forth to see what kind of play there is in the rack from underneath. Hopefully that will shed some light.

Not that it matters, but before I had the rack installed I put the Whiteline rack bushings on the rack. I noticed the passenger side bushing didn't have the same little "knob" that protrudes through the hole in the bracket as the stock bushing. Is that weird?

Thanks, y'all!

Have you hard the car in the air (lift or ramps) and tried to wiggle( don't need to turn the wheels) the steering. You should be able to find the sloppy point.

look for the rack shifting,
check that the outer tie rods are tight,
check the ball joints are good and are tight,
heck check to make sure the tires are on tight,
check the STi coupler to make sure it is moving like it should..
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Old 08-06-2014, 05:16 PM   #18
kungfooren
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Just did the 05+ on 04 swap today. Worked out well.
Notes:
As mentioned before, use the old 02-04 bushing and clamp for the passenger side. Use the 2x longer M10X1.25X50 bolts (901000181) for the driver's side. Cut the C-bracket as recommended by funk32 and the dirtyimprezaDOTcom post (http://www.dirtyimpreza.com/forums/s...-swap-on-a-WRX)

Here's a pic of the 05 rack installed. https://www.dropbox.com/s/kpe8jgx461...05rackon04.jpg
.
Mechanic spent most of the time trying to connect and line up the hardlines to the pump and reservoir. Other than that, it went smoothly. Thanks for all the help, guys.

Initial driving impressions: Slightly faster steering as expected but more importantly NO MORE HORRID MEMORY STEER. I have poly rack bushings on the pass side but the stock bushings on the driver's side. Even with these bushings on my old rack, the memory steer was bad. The wheel now recenters itself much better. I might be even more secure and better had I used an 05+ crossmember with the 6 mounting holes but it's already much improved with my using only 4.
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Old 08-07-2014, 02:54 PM   #19
Moritasgus219
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Default Steering quickener vs STI rack

What would the benefits of this swap be opposed to a steering quickener? I was looking into one for my WRX Bugeye. Is it a reliability issue or a cost issue?
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Old 08-07-2014, 11:57 PM   #20
funk32
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