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Monroe vs KYB....again #2982412 04/23/13 09:30 PM
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cp3 Offline OP
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Where are we in the opinion pole?

Strut mounts are gone on the front of the G6 and at 260k km, I'm sure the struts could use replacement too. I put KYB on the back last year, shocks and mounts and have no issues or concerns with them.

I realize the Monroe Quick-Struts would be easier but how much softer are they? And do the springs really need to be replaced?

What about the associated pieces? Replace everything? As far as the insulator, spring seat and mount, any brand preferred?


Dodge Charger|Pennzoil Platinum 5w20|Mopar MO-744
Pontiac G6 GT|Mobil 1 0w40|Mobil 1 M1-101
Re: Monroe vs KYB....again [Re: cp3] #2982421 04/23/13 09:42 PM
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GSCJR Offline
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I have had good luck with both brands in the past. In your case I would use the KYB just to keep it the same as the rear. Replace everything since it's all going to be apart and be done with it.

Last edited by GSCJR; 04/23/13 09:55 PM. Reason: grammar

07 3.5L VQ35DE NAPA FS 5w-20 ProSelect 21358 158KM
10 3.5L 2GR-FE NAPA FS 5w-20 ProSelect 27047 180KM
Re: Monroe vs KYB....again [Re: cp3] #2982425 04/23/13 09:47 PM
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oilmaven Offline
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I've used both as well and didn't care for either one of them. Neither held up particularly well and the Monroes were too soft and the KYB's rode like rocks. I've been extremely happy with my Sachs struts...used them on my Honda Accord and have them installed on the minivan. Price is about the same but they are far superior in ride, handling and durability to the Monroes and KYB's in my opinion.


2010 Suzuki Kizashi-Pennzoil Platinum Pureplus 5W30
2013 Toyota Prius-Pennzoil Platinum 0W20
Re: Monroe vs KYB....again [Re: cp3] #2982442 04/23/13 10:06 PM
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mechanicx Offline
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My vote rather than a quickstrut would be for keeping the OE spring and use Monroe Sensatrac struts and strut mount or ACDelco Professional struts and mounts. The OE parts would be better but are way too expensive.

Re: Monroe vs KYB....again [Re: cp3] #2982453 04/23/13 10:13 PM
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The Critic Online Crying
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SInce you already have KYB on the back, I would install another pair on the front.

However, I've been happy with the recent Monroe OESpectrum (foreign cars only). The KYB offerings have been dismal. The OE ones on my Prius are pretty much worn out at 60k, and the aftermarket KYB Excel-G on my father's van are stupid soft and feel "worn out," even though they are brand new. I thought they were OK at first, but the lousy performance became evident after a few thousand miles.


2011 Toyota Prius 1.8L - 207K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 146K - Valvoline Premium Blue Restore 10W-30
Re: Monroe vs KYB....again [Re: cp3] #2982467 04/23/13 10:35 PM
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tommygunn Offline
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How about Gabriel? They also have a quick strut called "Readymount"

Gabriel Readymount part numbers:
G57069 (left)
G57070 (right)

It is MUCH easier to just replace everything at once, and also cheaper. Plus you don't have to mess around with a spring compressor or disassemble and reassemble.

When you replace struts you almost always have to replace the mounts--they do go bad! Also, they cost almost as much as the struts themselves. Once you add up the cost of the struts and mount sand insulators, you're getting new springs for free when you opt for the quick struts.

Normally I'd say get the KYB since your rear shocks are KYB and to match, BUT they're not brand new since you're had them on for a year already. The different age/mileage from front to rear would make that moot anyway. But usually people replace all four at the same time.

Also, about how many miles on the KYB's from last year?

If you have a LOT of miles on them, consider getting new Monroe or Gabriel rear shocks to go along with the quick struts: both Monroe and Gabriel are having rebates until the end of April which would make the rear shocks free or almost free after the rebate.


i am a [censored] who hides behind bugmenot.
i also like applying negative pressure to a certain male appendage.
Re: Monroe vs KYB....again [Re: tommygunn] #2982472 04/23/13 10:41 PM
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Originally Posted By: tommygunn

When you replace struts you almost always have to replace the mounts--they do go bad! Also, they cost almost as much as the struts themselves. Once you add up the cost of the struts and mount sand insulators, you're getting new springs for free when you opt for the quick struts.


In theory, quick struts are a great idea. However, as usual, the aftermarket cuts corners when they offer these assemblies. Instead of having the exact spring for a particular engine/trans, it is likely that all trims of the same vehicle will use one spring. Likewise, the aftermarket bellow boots are never an exact fit, and the mounts are of a questionable quality.

The OP is better off replacing the hardware with new OE hardware and either a new OE strut or a high-quality aftermarket (Koni or Bilsten) as opposed to buy the quick strut. Sure, this will be a much more expensive route, but the job will be done right and he can expect the same service life that he had received from the factory unit.

Originally Posted By: tommygunn
Normally I'd say get the KYB since your rear shocks are KYB and to match, BUT they're not brand new since you're had them on for a year already. The different age/mileage from front to rear would make that moot anyway. But usually people replace all four at the same time.


Your comment does not make any sense. An analogy would be to tell someone who has two 30% worn, Michelin Pilot Super Sport tires on the rear axle, that it is OK to install a set of UHP summer tires (i.e. Potenza RE760 sport) on the front axle. Just because the rears may be slightly worn, does not mean their performance characteristics have changed.


2011 Toyota Prius 1.8L - 207K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 146K - Valvoline Premium Blue Restore 10W-30
Re: Monroe vs KYB....again [Re: cp3] #2982492 04/23/13 11:26 PM
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Texan4Life Offline
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I have had no complaints with Monroe's both their regular struts/socks, and most recently their quick strut.


2005 Dodge Ram 1500, 5.7L
[Current Fill: PP 0w-20][Baldwin B2-HPG]
Re: Monroe vs KYB....again [Re: cp3] #2982507 04/23/13 11:53 PM
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DrDusty86 Offline
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I did the MOOG quick struts on the zx2 and it made a HUGE difference in the stance, the car is 1.5" higher all the way around even after 5k miles and the new springs settling. The ride is firmer.. It is just a hole lot better. I'm glad I went with a quick strut the springs were sagging badly on my car and I never really saw that until I replaced them

Re: Monroe vs KYB....again [Re: cp3] #2982550 04/24/13 01:45 AM
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jdmstr22 Offline
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Originally Posted By: cp3
Where are we in the opinion pole?

Strut mounts are gone on the front of the G6 and at 260k km, I'm sure the struts could use replacement too. I put KYB on the back last year, shocks and mounts and have no issues or concerns with them.

I realize the Monroe Quick-Struts would be easier but how much softer are they? And do the springs really need to be replaced?

What about the associated pieces? Replace everything? As far as the insulator, spring seat and mount, any brand preferred?


I would stick to kyb and keep your old springs. Cheaper in the end and better parts. Monroe are not as stiff as the kyb are so it will bounce more.


06 Sonata GLS 2.4 177k PP5W30 OEM Filter
03 BMW M5 68k Castrol TWS 10W60 OEM Filter
Re: Monroe vs KYB....again [Re: cp3] #2982578 04/24/13 05:01 AM
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SteveSRT8 Offline
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Originally Posted By: cp3
Where are we in the opinion pole?

Strut mounts are gone on the front of the G6 and at 260k km, I'm sure the struts could use replacement too. I put KYB on the back last year, shocks and mounts and have no issues or concerns with them.

I realize the Monroe Quick-Struts would be easier but how much softer are they? And do the springs really need to be replaced?

What about the associated pieces? Replace everything? As far as the insulator, spring seat and mount, any brand preferred?


Don't miss the Gabriel Ultras if they have one for your application. A great product at a great price!


"In a democracy, dissent is an act of faith."
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Re: Monroe vs KYB....again [Re: jdmstr22] #2982709 04/24/13 08:12 AM
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doitmyself Offline
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Originally Posted By: jdmstr22
I would stick to kyb and keep your old springs. Cheaper in the end and better parts. Monroe are not as stiff as the kyb are so it will bounce more.


This is probably what I would do, unless you can find specific instances that the KYB Quick Struts work well on your specific application. Sticking with the same brand on all four at least gives you a chance of having some uniformity front to back.

If there is this much inconsistency among brands as being discussed here, it seems that sticking with the same brand would be the lesser potential evil.

What a challenge aftermarket parts use has become.

Re: Monroe vs KYB....again [Re: cp3] #2982825 04/24/13 10:11 AM
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cp3 Offline OP
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I'll have to pass on the Sachs and Gabriel suggestions as I'm pretty much limited to what RockAuto has. There isn't a huge difference in price between the KYB and Monroe struts. All of the related parts are pretty close too.


Dodge Charger|Pennzoil Platinum 5w20|Mopar MO-744
Pontiac G6 GT|Mobil 1 0w40|Mobil 1 M1-101
Re: Monroe vs KYB....again [Re: cp3] #2982863 04/24/13 10:52 AM
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I used Monroe Quick-Struts on the wife's Corolla last year. I'm pleased with the build quality of the replacement parts, I'm just disappointed in the valving and possibly the front spring rate. While the rears made a big difference, the front of the car feels almost as if I never replaced them. Both the rate and the valving could use some firming up, but they're on there now.

Monroe apparently have a lifetime warranty, so that's good. But I'm not sure I would buy them again.

Re: Monroe vs KYB....again [Re: cp3] #2983194 04/24/13 04:04 PM
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mechanicx Offline
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You could just go with the KYBs since you say you are happy with the rears. I prefer Monroe Senstracs. There's no real reason to think you have to go with KYB just because the rears have them. You don't have KYB in the front now and KYB vs Monroe on the front doesn't necessarily mean the KYB will give a better front to rear balance and ride with the KYB rears. Although, it could be possible, the KYB front and rear struts are probably not all that balanced in valving with the car's parameters.

Why do you have to get them at Rockauto? If say you wanted ACDelco front struts, or the OE which I doubt due to be way more expensive, Amazon might be a better source. You can print off any rebate available and still use it. edit: I forgote you are in Canada.

Again, I would want to reuse the original spring. I think they are higher quality and better matched to the vehicle.


Last edited by mechanicx; 04/24/13 04:07 PM.
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