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Discussion Starter · #1 ·
Coming from independent rear suspension Hondas, I've noticed the rear end is a bit too floaty and bouncy on the Elantra. Over expansion joints and certain types of roads, there is rhythmic undulation from the back. Most of that is likely due to the torsion beam suspension, but I wonder how much is due to the shocks...

Does anybody know who supplies the OEM shocks? I'm wondering if changing to firmer shocks, like KYB, would make a difference. Then again, I'm not even sure if KYB has anything out for these cars yet.
 

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Not sure if KYB has released an approved engineering design for production, yet. It took (what seemed like) forever to get their rear shocks for the MD into production. But when they did, vendors couldn’t keep them on their shelves.

I had a MD at the time (2011) and replaced the OEM’s with the KYB’s. Personally, it was a night and day difference in the improved ride quality while offering less wheel hop in the back and more stability in the steering/tracking. Hyundai improved their shock specs on the 2013’s. I had that year’s model, as well. Numerous calls to KYB tech support was met with “We’re in the design stage to ensure fitment and applications.” Whatever. I never did pursue it further. Guess the design process was product liability driven by their team of corporate lawyers. Like everything else, nowadays. The fear of being sued by the consumer. Again, “whatever!” ;)

This shade tree mechanic’s opinion was that the KYB’s for the 2011’s would crossover and mate up with the 2013’s with no tweaking needed. The model year changes between 2011-13 were mostly cosmetic, anyway. But I never tested my theory. I vaguely recall a forum member saying he could find Koni’s to work back there. I looked at the price and decided I didn’t need them that badly.

It’s not a Maserati, it’s a Hyundai. A very nice vehicle, but still just an economical little vehicle. But Koni’s? :grin2:

Bought them at Rock Auto. You might check there for availability.
 
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Discussion Starter · #3 ·
Yeah, I remember hearing people complain about the rear shocks on the MD's.

RA doesn't have anything for our cars. I searched around and Monroe only has shocks for the GT's. Even if they did fit, I haven't heard good things about Monroe shocks anyway.
 

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Nice read. This exact problem with the limited models and below is what pushed my decision to purchase the Sport model; that and purchasing a car with a turbo.

The problem you’re facing is the market isn’t geared for people really adding a ton of aftermarket parts for anything else other than the Sport model. I haven’t really noticed anything on the market. Now if it was the Sport model, there’s more than a few options out there.

I’m surprised you purchased your current Elantra coming from the bases of your other cars which did include a IRS. Now that my Sport model has broken in, I’ve recently been looking into a complete coilover setup.
 

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Discussion Starter · #5 ·
I’m surprised you purchased your current Elantra coming from the bases of your other cars which did include a IRS.
I didn't notice it when first test driving the car on the highway; maybe because the suspension was weighed down with my wife and BIL sitting in the back. Only when I drove alone for the first time did I feel the rear end being splashy.

My old Infiniti had a solid beam rear axle and it did a good job of remaining composed. In the end, the Elantra's an economy car, so elements of cost cutting will be present. But, it's still a great value for the money. I definitely will be keeping an eye out for KYB releases, though.
 

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I definitely will be keeping an eye out for KYB releases, though.
Just did a cross ref at KYB America’s website. Ran through several of the the various year’s Elantra models: MD 2013, AD 2017, AD 2017GT. All list KYB model number #554384 as being the correct fitment for each of these models. My opinion: If there have been zero changes in the rear beam suspension, I’d say you’re “good to go” with ordering the KYB’s, above.

Someone on here with a bit more time may want to double check my findings across the 2011-2018 Elantra lines.

A check with Rock Auto by KYB p/n in lieu of using their search engine by model:
 

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Discussion Starter · #7 ·
^^Interesting stuff. Thanks for the information. Even if these KYBs don't fit, putting the old shocks back in looks pretty easy (especially since road salt hasn't seized everything to **** yet). Two bolts, in-and-out, bam.
 

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^^Interesting stuff. Thanks for the information. Even if these KYBs don't fit, putting the old shocks back in looks pretty easy (especially since road salt hasn't seized everything to **** yet). Two bolts, in-and-out, bam.
I think it took me about 55 minutes. From the time I started jacking up the rear until I put the tools back up. If this 69-year old geezer with grey hair can do it, you 30-50-year old kids shouldn’t have any difficulty. :grin2:

I’m actually thinking of buying a set of these for the AD. I dunno. Just mulling it over. Let’s be honest, the biggest complaint I can recall reading over the last 8 years in this forum was related to “rear end.” The inability to align it, the wheel hop going over bumps, beam suspension, stuff like that. Which is the major reason so many of us jumped onto the KYB bandwagon. In all these years, I think I may have read 2 posts where no difference was observed over the OEM shocks. Out of the many hundreds of satisfied Modder's.
 

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Monroe's are hit and miss- with some brands they're great and not so much with others. I have QuickStruts on my GM vehicle and they've been perfectly fine. Personally, I'd wait and see what else comes along for the AD. I was willing to take the risk on my 12 year old beater, but I'm not going to gamble with my one year old AD.

Torsion beam suspension does have it's drawbacks, but to OkieRich's point, it does keep the price down which is what Hyundai is trying to do here. They've (correctly, I might add) gambled with the future of their lineup thinking people would be more interested in the technology in the cars versus the performance of it. You'd be hard pressed to find a car as well equipped as the Elantra at that price point, but it does come at the cost of some performance (lack of IRS, 4 wheel disk brakes, etc).
 

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@EdmondEsq: I have 4-wheel discs on my 2017. Have they reverted to drums on the rear? Or is it by “Grouped Tier level’s?” Mine is the Ultimate...FWIW.

Where rear shocks are concerned, rumor of Koni’s entering the Elantra market on front struts. Can’t speak to rear shocks because I don’t recall. And I know the KYB’s are a quality product. With a lifetime warranty, IIRC.

Agree 100% on Your Monroe analogy. That’s my go-to brand when I have exhausted “nearly” every other nameplate that’s available on the market. LOL

Bought my ‘17 in April of 2016 as they were first I toducex. Over two years now, with 44k+ and she’s purring along. Dealer changes the oil/oil filter. I change the other filters, throw a little Techron down her throat every 8-10k, monitor the tire pressures and fluid levels. Dealer oil change specials lately have been $19.99 (Dino oil). That’s all I do. It’s a GREAT little travel companion!
 

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@EdmondEsq: I have 4-wheel discs on my 2017. Have they reverted to drums on the rear? Or is it by “Grouped Tier level’s?” Mine is the Ultimate...FWIW.

Where rear shocks are concerned, rumor of Koni’s entering the Elantra market on front struts. Can’t speak to rear shocks because I don’t recall. And I know the KYB’s are a quality product. With a lifetime warranty, IIRC.

Agree 100% on Your Monroe analogy. That’s my go-to brand when I have exhausted “nearly” every other nameplate that’s available on the market. LOL

Bought my ‘17 in April of 2016 as they were first I toducex. Over two years now, with 44k+ and she’s purring along. Dealer changes the oil/oil filter. I change the other filters, throw a little Techron down her throat every 8-10k, monitor the tire pressures and fluid levels. Dealer oil change specials lately have been $19.99 (Dino oil). That’s all I do. It’s a GREAT little travel companion!
Yes, the 4 wheel disc brakes come only on certain trim levels. It was a bit more limited in 2017 than the 2018 models though, as more 2018 trim levels offer it than last MY, which is a step in the right direction in my opinion.
 

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Can anyone confirm #554384 fits the 2017 AD Elantra? I don't see anything on rock Auto for shocks under the 2017 Elantra. Would like to know as I feel the car definitely could use these for improvement

I definitely will be keeping an eye out for KYB releases, though.
Just did a cross ref at KYB America’s website. Ran through several of the the various year’s Elantra models: MD 2013, AD 2017, AD 2017GT. All list KYB model number #554384 as being the correct fitment for each of these models. My opinion: If there have been zero changes in the rear beam suspension, I’d say you’re “good to go” with ordering the KYB’s, above.

Someone on here with a bit more time may want to double check my findings across the 2011-2018 Elantra lines.

A check with Rock Auto by KYB p/n in lieu of using their search engine by model:
 

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Can anyone confirm #554384 fits the 2017 AD Elantra? I don't see anything on rock Auto for shocks under the 2017 Elantra. Would like to know as I feel the car definitely could use these for improvement
I went by p/n and model years on KYB Home page. Rock Auto isn’t up to speed on 2018’s. But, if it’s beam rear end and not IRS, it should be the same shock as previous models. MD’s & AD’s.

Let’s do this: Buy a set of 554384’s, have them shipped to me, I’ll install them, and let you know how much you would’ve enjoyed owning them. :grin2:
 

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I cannot find that on KYBs website however I emailed them about it and this is what they said.

Can anyone confirm #554384 fits the 2017 AD Elantra? I don't see anything on rock Auto for shocks under the 2017 Elantra. Would like to know as I feel the car definitely could use these for improvement
I went by p/n and model years on KYB Home page. Rock Auto isn’t up to speed on 2018’s. But, if it’s beam rear end and not IRS, it should be the same shock as previous models. MD’s & AD’s.

Let’s do this: Buy a set of 554384’s, have them shipped to me, I’ll install them, and let you know how much you would’ve enjoyed owning them. <img src="http://www.hyundai-forums.com/images/Hyundai-Forums_2014/smilies/tango_face_grin.png" border="0" alt="" title="Big Grin" class="inlineimg" />
 

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Latest on this KYB THREAD:

Go to RockAuto.com. Select 2016, Elantra, 2.0, Suspension, Shocks. Scroll down. Look at the KYB p/n: 554384.

Now, do the same for 2017 Elantra. Note the KYB p/n: 554384.

Same number. No change in beam suspension on 2011-2018 Elantra’s MD’s or AD’s. EXCEPT: the 2018 Turbo-charged model since it has IRS.

If I was a gambling man, I’d take this challenge with the KYB’s fitting your GT, VALUE EDITION, SEL, LIMITED, or ULTIMATE.

Hope this helps. Keep me in the loop on this.
 

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Coming from last two cars with independent suspension I cannot see much difference with my Elantra. I noticed a huge difference when changing tires on previous cars. I went from Michelins in the 93 Sentra to Goodyear Intregity. The car was a joy to drive before I changed to Goodyear. Goodyear gave me many bad years. Hated to drive the car after that. Felt every bump, hydroplaning, poor traction, etc.

I have Nexens on my Elantra with 15" steel wheel run at 40 lbs. Tires are quiet and handle bumps well. I don't push them, but for everyday doing well.

I know you posted noise with your tires. If shocks do not work out I would look at a more premium tire.

Whatever you decide, be sure to ship a set to OkieRich first so he can verify your purchase and let you know how well they work.:grin2:
 

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I think we are a little off base here. Now I dont have a 2017+ sedan but going off Hyundai OEM diagrams and the fact KYB does not have parts listed for the 2017+ AD on their site makes me believe that there was changes to the AD sedan rear axle. The 2018 Elantra GT rear axle received significant changes of shock mounting and design is improve handling and rear end behavior. The shock was changed to be more vertical and I believe the entire top mount (and bottom) is different.

The 2011-2016 MD and 2013-2017 Elantra GT use the same shocks.

https://www.hyundaioemparts.com/aut...gas-engine/rear-suspension-cat/rear-axle-scat

https://www.hyundaioemparts.com/aut...ear-suspension-cat/shocks-and-components-scat
 

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... I went from Michelins in the 93 Sentra to Goodyear Intregity...I have Nexens on my Elantra with 15" steel wheel run at 40 lbs. Tires are quiet and handle bumps well. I don't push them, but for everyday doing well...
What model of Michelin?
What model of Nexen?
 

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Firming up the rear end!

Try some leg-lifts! :grin2:
 
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