Wanting to go 1" lower. Spring recommendations?

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Postby Mr Revhead » Thu Aug 09, 2012 1:48 am

Kiwi-Corolla wrote:Yeah the bump stops are there to protect the shock's internals inside the strut body, so by cutting them in half I'll essentially be reducing the life of the front shocks as the piston rod isn't made to constantly be positioned that far down in the strut body, but since they're only OEM front shocks and replacements can be bought from Pick-A-Part for $34 it really doesn't bother me if they only last only 6-months to a year instead of lasting several years like they would at standard height.


Hmm partially correct.
You also bottom out the shock internals. So they last 6 minutes instead of a few years. The bump stops are there to stop the shocks bottoming internally.

Tein and TRD test their products. There is a reason both those companys only co certain drops on vehicles. And that is because anything more than that becomes unsafe on stock components, you need to start changing shocks etc. King and companys like that do not do such testing.

To put it bluntly, what you are trying to do, cannot be done safely and legally by the methods you are using. It is lowering jobs like this that result in ever toughening modification laws.
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Postby wde_bdy » Thu Aug 09, 2012 8:28 am

Jack the car up, push the bumpstop as high as you can then lower it back down and check where it sits. If it is still in the same spot you need to raise the car back up (presuming the bumpstop isn't sliding loosely on the shock shaft, if it is chuck a cable tie below it temporarily to hold it up the shaft).

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Postby B_giB » Thu Aug 09, 2012 9:05 am

Isnt it illegal to modify bump stops?
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Postby duddley » Thu Aug 09, 2012 9:19 am

I didn't know dodgey suspension was an optional extra on these corollas. It loks like the only way to do it and keep it safe is by spending some coin and tsoob who did that work on the vitz? as they really should be named and shamed.
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Postby Bazda » Thu Aug 09, 2012 10:30 am

Get shorter shocks?

King lows on stock shocks will just kill the shocks.
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Postby Kiwi-Corolla » Thu Aug 09, 2012 3:15 pm

Update: Removed both shocks today and cut the bump stops in half (from 55mm to 27.5mm) but it didn't make any difference to the height. I gained a few cm's of suspension travel though.

Next I removed both shocks again and switched the springs from left to right but there's still no difference in the height. Measures up exactly the same as my previous measurements.

The front right side is still about 10mm lower than the front left, so either the chassis has moved a little over the past 19-years or something else is wrong to cause that one side to sit slightly higher than the other.

Either way, I've tried everything I can think of but it still won't budge. Only options are compressed springs or coilovers, but I'll live with it for now. It's no longer sitting on the bump stops so I managed to gain at least one thing from the work I did today :)
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Postby eskimo » Thu Aug 09, 2012 4:10 pm

Kiwi-Corolla wrote:Update:
The front right side is still about 10mm lower than the front left, so either the chassis has moved a little over the past 19-years or something else is wrong to cause that one side to sit slightly higher than the other.


Full tank of gas?? or is the tank in the middle... cant recall where the tanks are in the AE10.. corrolla's
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Postby Mr Revhead » Thu Aug 09, 2012 4:15 pm

Camber of roads will make that 10mm irrelevant
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Postby Kiwi-Corolla » Thu Aug 09, 2012 4:15 pm

eskimo wrote:
Kiwi-Corolla wrote:Update:
The front right side is still about 10mm lower than the front left, so either the chassis has moved a little over the past 19-years or something else is wrong to cause that one side to sit slightly higher than the other.


Full tank of gas?? or is the tank in the middle... cant recall where the tanks are in the AE10.. corrolla's


The tank is in the middle. Currently has a quarter of a tank of gas.
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Postby TRD_ZERO » Thu Aug 09, 2012 7:14 pm

I've had that issue with the right side being lower than the left on a couple of previous cars. Just a thought but you drive on the right hand side/get in on th right so majority of your weight is on the right hand side. More strain on the right over time. And with them being factory they are old so they will be well worn.

You mentioned that the shock shaft doesn't stay up by itself and even slips down when installing springs. They are gas shocks arnt they? They should stay up shouldn't they? Oil shocks don't bounce back only gas ones do right?
That means they are poked.

Just my 2c
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Postby Mr Revhead » Thu Aug 09, 2012 7:31 pm

Yeah if they slide back down by themselves they are stuffed. No longer shocks, merely spring holders now
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Postby Lloyd » Thu Aug 09, 2012 7:56 pm

Pickapart will have some mint ones though :roll:
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Postby Kiwi-Corolla » Thu Aug 09, 2012 8:04 pm

TRD_ZERO wrote:I've had that issue with the right side being lower than the left on a couple of previous cars. Just a thought but you drive on the right hand side/get in on th right so majority of your weight is on the right hand side. More strain on the right over time. And with them being factory they are old so they will be well worn.

You mentioned that the shock shaft doesn't stay up by itself and even slips down when installing springs. They are gas shocks arnt they? They should stay up shouldn't they? Oil shocks don't bounce back only gas ones do right?
That means they are poked.

Just my 2c


The front left shock didn't slip down by itself but it took minimal effort to actually push the piston rod down by hand, and when compressing the springs by hand during installation of the centre nut it would slip down, making it incredibly difficult to get enough thread to put the nut on (didn't use spring compressors to install the springs to the struts as there was no need). I could lightly lean on it and it'd go down.

The replacement one that I installed today is MUCH firmer however and takes a considerable amount of effort to push down and pull back up. The front shocks are factory, so they're oil shocks. The rear shocks are Monroe GT's so are gas. The front right shock didn't require replacing as it was nice and firm, however I would like to upgrade them to gas shocks in the future. Would still love to find out what's causing the left side to be a tad higher though. It bugs the hell out of me every time I look at it. After a lot of Google searches it appears to be a very common issue on all sorts of cars. Some people have replaced bushings and tie rod ends etc and it has fixed it, but most people have had to learn to live with it, unless of course they go for coilovers.

Lloyd wrote:Pickapart will have some mint ones though :roll:


Haha, Pick-A-Part actually did have a mint one :). Came off a very low km Marino. Obviously wouldn't be as good as new but was nice and firm and had no leaks. I kept the rubber insulators as spares, so for $34 I can't complain 8)
Last edited by Kiwi-Corolla on Thu Aug 09, 2012 8:07 pm, edited 1 time in total.
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Postby Mr Revhead » Thu Aug 09, 2012 8:05 pm

Stock Corolla shocks are gas
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Postby Kiwi-Corolla » Thu Aug 09, 2012 8:11 pm

Mr Revhead wrote:Stock Corolla shocks are gas


Are you sure? Pretty sure that they're definitely oil shocks....
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Postby Mr Revhead » Thu Aug 09, 2012 8:19 pm

Yep I am. Plain oil shocks are actually rare
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Postby Kiwi-Corolla » Thu Aug 09, 2012 8:34 pm

Mr Revhead wrote:Yep I am. Plain oil shocks are actually rare


But they're gas AND oil though right?
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Postby Mr Revhead » Thu Aug 09, 2012 8:38 pm

Yes, gas shocks just have gas added. They both have oil.
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Postby Kiwi-Corolla » Thu Aug 09, 2012 8:56 pm

Mr Revhead wrote:Yes, gas shocks just have gas added. They both have oil.


Ohh ok. How do you tell if the OEM ones are poked? (aside from fluid leaks). Should they spring back up by themselves after being depressed? Or are they meant to be aided by pulling them up by hand? My repair manuals say to push/pull the piston rod up and down to check for slack and tight spots, so I assume they're not like today's shocks which come back up on their own after you press them down.
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Postby Mr Revhead » Thu Aug 09, 2012 10:04 pm

Yes they should come back up. You can still push and pull them.
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