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Old 04-07-2013, 01:22 AM   #1
jasonb
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Default Has anyone ever broken a Prodrive spring?

I did! Somehow I managed to break both of my rear springs.

'06 wagon, KYB GR-2 struts, group N top hats, sedan rear sway bar, whiteline solid end links and Paranoid Fab front fender braces

Was swapping out to my summer tires today and noticed a weird groan coming from the rear. In looking into it more, I realized both rear springs were broken in about the same place (inboard side). Didn't notice it a few weeks ago when I was rotating winter tires though.



I just have never seen anyone mention breaking a Prodrive spring before. These were the Blue ones, and I bought them used. I have maybe 30K miles on them, but I don't remember how many were on them before that.

Just to be sure, I wanted to see if there is anything else I need to be checking for. Is this a symptom of something else wrong as well?

Struts look fine, no leaks and they extend out fully when not compressed.

To replace: Epic, Swift or Mach V? And should I put all four in at once, or run whatever replacement I get in the rear and leave the Prodrives up front alone (no dealing with alignment then)?

Thoughts?
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Old 04-07-2013, 01:58 AM   #2
Uncle Scotty
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i have seen this posted several times

prodrive springs are garbage
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Old 04-07-2013, 03:43 AM   #3
teiva-boy
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Swift or RCE springs, and done
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Old 04-07-2013, 08:39 AM   #4
Subydude81
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Swift and do all 4 and get an alignment.

Contact Prodrive.
I know they no longer sell parts but they should do something for you.
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Old 04-07-2013, 09:47 PM   #5
txl146
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Mine also cracked at the end on one of front spring. Replaced them with RCE yellow v2 springs.
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Old 10-26-2013, 09:26 PM   #6
Suburban
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I was doing a tire rotation on my '04 Impreza 5-door, when I noticed that one of ProDrive springs was sitting funny on the strut. Broken. Went around to the other side. Yup, that one too. Both rear springs broken, in about the same place as shown in the OP photo.

I had noticed groaning when the suspension articulates, like when backing out of my driveway, but nothing seemed to be wrong in the corner that I thought the noise was coming from when I checked a month or so ago.

Maybe 50,000 miles on the ProDrive springs.

IIRC the ProDrive springs were manufactured by Eibach.


Sitting on broken rear springs.


Everybody's Lowridin'. Broken Prodrive blue springs.


Now with new Tein H-Tech rear springs.




The dampers aren't really related to the Prodrive failure. Decided to go Koni, since I was talking apart the struts already, and the factory struts had 76500 miles on them.

Last edited by Suburban; 11-06-2013 at 09:12 PM. Reason: added photos
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Old 11-03-2013, 09:59 AM   #7
riverarob
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Not on here much but I'm surprised to see that. I thought the prodrives were quality. I've had my set on my bugeye since new. Going on 160k miles & 10+ years.

Just something you shouldn't have to deal with at that kind of mileage on them.

Do you guys live in places with harsh winters?
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Old 11-03-2013, 11:26 PM   #8
Suburban
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Quote:
Originally Posted by riverarob View Post
Do you guys live in places with harsh winters?
Edited earlier post to add pictures.

I think the silicone silencer wrapped around the spring trapped moisture. You can kinda see in the photo that the lower part of the spring is rusted. The ends where the spring broke is rusted.

The car has lived through a few blizzards.
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Old 11-06-2013, 04:07 PM   #9
jasonb
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Both of mine were broken inside the plastic wrap on the lower potion of the springs. I am sure it trapped moisture and mag chloride in there which led to the failure.

Yes, the winters here can be long and sometimes harsh.
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Old 11-07-2013, 09:32 PM   #10
mephistomarius
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I hope my springs don't meet this demise, you sure ur struts were ok?
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Old 02-02-2015, 03:03 PM   #11
Danman6730
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Bumping an old thread...

I've got the Prodrive blue springs as well and just found out last week that both of my rear springs had snapped in the same place as the other people in this thread! I installed them on my 2006 WRX in 2007. I installed them with my original stock struts. I thought for sure the struts would have worn out way before the springs.

Can anyone recommend springs that are still manufactured for the 06 WRX that are as close as possible to the Prodrive blues (both in lowered height and spring rate)? Also, I have about 54,000 miles on my car. How much longer can I expect my stock struts to be good for before I have to replace them? There are no signs at this time that they need to be replaced but I'd hate to put new springs on the car and then have to replace the struts a couple months later. My WRX is a daily driver and is never driven on the track.

Thanks for the help!
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Old 02-02-2015, 05:19 PM   #12
Bikelok
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Quote:
Originally Posted by Danman6730 View Post
Bumping an old thread...



I've got the Prodrive blue springs as well and just found out last week that both of my rear springs had snapped in the same place as the other people in this thread! I installed them on my 2006 WRX in 2007. I installed them with my original stock struts. I thought for sure the struts would have worn out way before the springs.



Can anyone recommend springs that are still manufactured for the 06 WRX that are as close as possible to the Prodrive blues (both in lowered height and spring rate)? Also, I have about 54,000 miles on my car. How much longer can I expect my stock struts to be good for before I have to replace them? There are no signs at this time that they need to be replaced but I'd hate to put new springs on the car and then have to replace the struts a couple months later. My WRX is a daily driver and is never driven on the track.



Thanks for the help!

Mach V springs are ProDrive copies.

Most OEM struts that are not abused can go to 100k.


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Old 02-02-2015, 05:56 PM   #13
Danman6730
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I'll take a look at the Mach V's. Do you happen to have any experience with Epic's? From doing some reading, it looks like the owner of Epic used to work for ProDrive.
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Old 02-02-2015, 10:53 PM   #14
Bikelok
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Not personally with Epic springs.

To be honest the type of lowering springs ProDrive, Mach V, Swift Sport and Epic springs are, are too low and too soft for me.

I prefer a spring that's a bit firmer and taller for a street car (like the STI springs).

Once you get away from those lowering springs and move up to a firmer spring, you need to upgrade the struts as well.

With the amount of miles on your struts you might want to consider getting new struts. OEM struts can go to 100k, but they will be very tired at that point. Most work well to the 65-75k point and go down from there.

So if you liked the way your old springs worked, then any of the ones I listed will be very similar to what you had. They all work with stock struts.

If you are looking for replacement struts for those springs then KYB Excel-G are inexpensive and better (slightly) than the OEM units (KYB makes the OEM units). I'd also strongly suggest getting Group N front strut tops. Better than stock, less bounce, less slop. Rears are not needed.

If you want more performance than do a bit of research as there are LOADS of threads on that.


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