Broken Rear Lateral Link
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This is a discussion on Broken Rear Lateral Link within the Suspension & Wheels forums, part of the Tech & Modifying & General Repairs category; Hey all, This morning while driving to work I noticed that something just wasn't quite right. I kept getting the ...

  1. #1
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    Broken Rear Lateral Link

    Hey all,

    This morning while driving to work I noticed that something just wasn't quite right. I kept getting the sense torque steer and what seemed to be intermittent wheel hop. Because I was driving in stop and go traffic and the shoddy state of most of the roads here in San Diego I couldn't tell if I was imaging things or if there was really something wrong? Later in the day I decided to do some investigating. Because of the torque steer I suspected that the issue was in the front end...

    Maybe a bad strut?
    Bad engine mount?
    Front drive shaft?
    Bad CV joint?
    Wheel bearing?
    Lose front sway bar or control arm?
    Failed bushing?

    After spending 15-20 minutes digging around in the front end I was beginning to become paranoid. I did a quick look under the rear of the car but at first glance everything seemed fine.

    I did some more driving on city streets paying careful attention to how the car was pulling decidedly to left with careful throttle modulation. At this point I was convinced that something was wrong but I had no idea what it was. I decided to risk it and take the car on the freeway to see if faster speeds would lead to more telling symptoms. Once I got the car up to about 55 MPH there was a very distinctive shudder and a repeated knocking noise coming from the rear of the car. I used my rear view mirrors to inspect the tires as I was driving. One glance at the drivers rear and I knew it was a bad lateral link or wheel bearing. I immediately pulled of the freeway and snapped the following picture:

    So the question is, now that I know what is wrong, what should I replace the broken lateral link with?

    Stock?

    STI?
    STi Lateral Link Set [ ST202504S000 ] - SubaruWRXParts.com

    Whiteline?
    Whiteline Adjustable Rear Control Arms (Sedan) [ KTA109 ] - SubaruWRXParts.com

    godspeed?
    eBay Motors: godspeed 02-05 subaru wrx sedan rear lateral link set 4 (item 180337670522 end time Mar-26-09 19:13:04 PDT)

    Cuso?
    Cusco Rear Lateral Links and Trailing Arms for 2002+ WRX and STi, Impreza Suspension from JSC Speed

    The car is question is a 03 sedan with Cusco front and rear strut bars, front and rear sway bars and aftermarket end links.

    Any suggestions would be greatly appreciated.

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  3. #2
    Registered User wrx wagone's Avatar
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    I'd got with the Whiteline parts if you want the adjustability. If you simply want parts that work, I'd go with the STi stuff.
    This message printed on 100% recycled electrons.

  4. #3
    Registered User STiDriven's Avatar
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    I think the more important question is how did you break that?

    That looks like a clean break, almost like it took a direct sharp impact there.

    Any idea? I wouldn't replace it until you know what caused it. Those shouldn't break like that.

  5. #4
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    Quote Originally Posted by glickstue View Post
    Hey all,

    This morning while driving to work I noticed that something just wasn't quite right. I kept getting the sense torque steer and what seemed to be intermittent wheel hop. Because I was driving in stop and go traffic and the shoddy state of most of the roads here in San Diego I couldn't tell if I was imaging things or if there was really something wrong? Later in the day I decided to do some investigating. Because of the torque steer I suspected that the issue was in the front end...

    Maybe a bad strut?
    Bad engine mount?
    Front drive shaft?
    Bad CV joint?
    Wheel bearing?
    Lose front sway bar or control arm?
    Failed bushing?

    After spending 15-20 minutes digging around in the front end I was beginning to become paranoid. I did a quick look under the rear of the car but at first glance everything seemed fine.

    I did some more driving on city streets paying careful attention to how the car was pulling decidedly to left with careful throttle modulation. At this point I was convinced that something was wrong but I had no idea what it was. I decided to risk it and take the car on the freeway to see if faster speeds would lead to more telling symptoms. Once I got the car up to about 55 MPH there was a very distinctive shudder and a repeated knocking noise coming from the rear of the car. I used my rear view mirrors to inspect the tires as I was driving. One glance at the drivers rear and I knew it was a bad lateral link or wheel bearing. I immediately pulled of the freeway and snapped the following picture:

    So the question is, now that I know what is wrong, what should I replace the broken lateral link with?
    hi mate,

    I have had the exact thing happen to me a few days ago.

    It is because of our solid end links - they dont allow enough sway on the lateral arm joint - and they just snap!

    I'l be going with a set of pink Sti ones soon




  6. #5
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    I ended up going with a stock replacement for the sort term. I'm still eyeing the STI pinks along with springs and struts. I recently swapped the front control arms for for the STI aluminum ones but I think any more parts for the WRX are going to be on the long term plan as I need to put a new tranny in my truck.

  7. #6
    Registered User DomozitoLK's Avatar
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    Quote Originally Posted by waxdass View Post
    It is because of our solid end links - they dont allow enough sway on the lateral arm joint - and they just snap!
    Mine broke with stock end links, but I do have a big rear sway bar...

    FYI

    Rob Thomas
    2004 Subaru Impreza WRX
    My WRX | Mod Reviews

    Wife's car: 2006 Subaru B9 Tribeca Limited 7-passenger
    WRX Strut Spacers...better than the washer mod!

  8. #7
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    Quote Originally Posted by DomozitoLK View Post
    Mine broke with stock end links, but I do have a big rear sway bar...

    FYI

    interesting!

  9. #8
    Vew
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    Reviving a dead post.

    Mine snapped today. Wheel almost freaking fell off. Thought it was just a bent sway bar until I got it on a lift, realizing the sway bar was probably the only think keeping it together! Also have an aftermarket sway and endlinks.



    Jon
    "We live for a good time, not a long time."
    RIP Colin McRae

  10. #9
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    What are the turn-buckle type jiggers for? A diffuser?

  11. #10
    Vew
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    Yes, they're for my rear diffuser.
    Jon
    "We live for a good time, not a long time."
    RIP Colin McRae

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