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Old 01-12-2022, 12:19 PM   #1
Hyper
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Member#: 15822
Join Date: Feb 2002
Location: MOCKBA
Vehicle:
1999 WRB GM6
2.34 LR destroker

Default Pillow ball bearings into lateral links

I am trying to find PB bearings that I can press into my STI aluminum lateral links
Ideally from some OEM, as those always come with dust boots which are important for this location
I have already looked into Subaru parts, but the GR+ rear knuckle bearing is too big to fit

OD 34mm, width 40mm - give or take, since you can always take some material off on a lathe

wondering if anyone knows of any manufacturer/make that uses similar, to be able to retrofit them

ibunrelatedcomments:
1. yes, I know of aftermarket lateral links, but I need to retain factory ones for inspection purposes
2. yes, I know of ST202504S030, but they are $$$
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Old 01-12-2022, 12:57 PM   #2
snow_bound26
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Have you tried contacting Kartboy? They have comfort bushings for most of the bushing they offer. They would be the first place I'd contact.
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Old 01-13-2022, 04:26 PM   #3
REX_WGN
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2009 FXT

Default

I have been on the hunt for these as well.

There is no oem replacement for those bushings. The ones that are in the part number you listed have a larger OD and the links themselves are unique in that they are built for the larger pillowball bushing.

I have been in talks with Rallispec about looking into building some but it's probably low on their list. I have also been in contact with another shop and they have started releasing sealed PB bushings for the VW Golf platform. I asked if they could make some for the GD lateral links and they said they just need a link in hand. I plan on sending a bent one I have laying around in the near future.

But generally speaking, I think the bores of the lateral links are just too small for a decent PB bushing that would be readily available.

What's interesting is that Cusco does have them available but they are expensive as hell. I don't have the part numbers handy but a few minutes on japanparts.com or cusco's site should turn up the part numbers.

BTW, the OEM PB bushing for the GR+ in the rear knuckle, I think it will fit the GD rear trailing arm location. I have a spare knuckle and the bushing in hand but I just haven't tried to press it in yet for a test fit. When I do, I'll be sure to post the results.

Hardrace USA sells sealed pillowball bushings for the GD suspension except, unfortunately, for the lateral links. I placed an order 4 months ago and the package still has not arrived from overseas.
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Old 01-13-2022, 05:09 PM   #4
ether947
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Quote:
Originally Posted by REX_WGN View Post
But generally speaking, I think the bores of the lateral links are just too small for a decent PB bushing that would be readily available.
I think you are right. ESM Racing has a spherical bearing kit for all the arms except for the lateral links. However, the kit is not cheap and the bearings are not sealed.

https://www.fastwrx.com/products/esm...2-2007-wrx-sti

Quote:
BTW, the OEM PB bushing for the GR+ in the rear knuckle, I think it will fit the GD rear trailing arm location. I have a spare knuckle and the bushing in hand but I just haven't tried to press it in yet for a test fit. When I do, I'll be sure to post the results.
Oh, that would be interesting if it works.
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Old 01-13-2022, 07:17 PM   #5
Hyper
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2.34 LR destroker

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Quote:
Originally Posted by REX_WGN View Post
I have been on the hunt for these as well.

There is no oem replacement for those bushings. The ones that are in the part number you listed have a larger OD and the links themselves are unique in that they are built for the larger pillowball bushing.

I have been in talks with Rallispec about looking into building some but it's probably low on their list. I have also been in contact with another shop and they have started releasing sealed PB bushings for the VW Golf platform. I asked if they could make some for the GD lateral links and they said they just need a link in hand. I plan on sending a bent one I have laying around in the near future.

But generally speaking, I think the bores of the lateral links are just too small for a decent PB bushing that would be readily available.

What's interesting is that Cusco does have them available but they are expensive as hell. I don't have the part numbers handy but a few minutes on japanparts.com or cusco's site should turn up the part numbers.

BTW, the OEM PB bushing for the GR+ in the rear knuckle, I think it will fit the GD rear trailing arm location. I have a spare knuckle and the bushing in hand but I just haven't tried to press it in yet for a test fit. When I do, I'll be sure to post the results.

Hardrace USA sells sealed pillowball bushings for the GD suspension except, unfortunately, for the lateral links. I placed an order 4 months ago and the package still has not arrived from overseas.

I know there is no OEM option, that's why we need to look outside of Subaru - I guess my post was misleading
for example, BMWs use a lot of PBs in their suspensions, I have asked my bimmer friend to look into this
I'd be ok with something that can be machined on a lathe to make it fit

how do you know those OEM links have bigger OD? they are different in constructions for the endlink connection, and have the mount for the headlight auto leveling sensor, but other than that they do look identical



there is also optional lateral links that came on JDM CrossSport Foresters - same aluminium links with standard endlink mount BUT for some reason they have 3 PB and one rubber bushing in them, and it just kills my mood


and thanks for the hardrace feedback, I was considering buying a bunch of stuff from them
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Old 01-13-2022, 07:33 PM   #6
REX_WGN
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I was also told to look into Mercedes Benz bushings. I just don't have the time to look into this with other Makes.

So I know about the larger bore lateral links because Dave at Rallispec told me. I also have this exact set sitting in my parts-to-install bin. I compared them side by side with the USDM 05-07 STI links and are indeed larger bores. I'm an avid parts finder on the internet.

You are correct about the other aluminum set with 3PB and 1 Group N bushing on the outer rear position closest to the endlink tab. If I didn't explain my theory on this in my linked thread above, then I must've did it in another thread. So my theory is that Subaru must've did some testing and realized that having a pillowball in this outer rear position is not good if the endlink mounts to the "normal" tab. Not good because the forces applied by the swaybar would cause premature wear of the PB bushing. So that's why they offered 2 STI-cataloged lateral link sets with PB bushings. All PB bushings set will use the endlink bracket that mounts to the knuckle - this keeps the swaybar forces on the knuckle too and not just the PB bushing. The other set with the normal endlink tab and the rubber bushing. Again, just my theory.

When I get the Hardrace bushings, I'll take some photos and post them here.
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Old 01-14-2022, 11:33 PM   #7
Blitzcrank
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Just my opinion. But if there is a factory part, which according to you there is an STI part. Then use that.
Cheap bearings are never worth it. If price is a concern then use polyurethane or rubber.
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