Front shocks keep blowing out. Bump-stops & shock travel questions. - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 9 Old 09-03-2011, 10:24 AM Thread Starter
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Front shocks keep blowing out. Bump-stops & shock travel questions.

As of today, this makes 3 front shocks with blown seals in the last 10 months (same company). Right now both my fronts are leaking hydraulic fluid badly and need to be replace ASAP. These shocks are the ones that come with the lift I got and are supposed to be tuned for the JK...

I have NOT gone wheeling in over 3 months. They both started leaking about 3 days ago. The driver's side one really bad at first and now the other side as well.

So I called the company and they looked up my lift kit they sold me and saw that I have 2" front bottom bump-stops. The guy said that is probably my issue and that the shocks must be bottoming out. He said I really should have 3" stops. Ok fine. So I took some measurements and this is what I found.

The space between the contact points of the top and bottom bump-stops is 2.5"
The exposed portion of the shock shaft (part that travels) is 4.25". (level ground)

Unless that upper factory rubber stop compresses all the way, I can't imagine how the shock can be bottoming out. Especially on normal roads and highways.

I don't wheel it very hard and only about once every 2 months or so. I do disconnect the sway bars when I'm off road though.

Can anyone enlighten me? Do those measurements seem normal or should I really get 3" lower stops? If I did, that would only leave 1.5" of space between the contact points. Seems too small a gap to me...

Thanks in advance for any help regarding this!

Last edited by dkrz123; 09-03-2011 at 01:53 PM.
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post #2 of 9 Old 09-03-2011, 01:53 PM Thread Starter
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Anyone?
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post #3 of 9 Old 09-03-2011, 02:18 PM
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What shocks? You can PM me if you want. I had lost the front shock seals recently too and have plenty of bumpstop. From your gallery it looks like they could be the same.

The seal in mine popped slid down the shafts. Poly took great care of me though and got me a new set asap.

Last edited by spedly; 09-06-2011 at 11:20 AM.
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post #4 of 9 Old 09-03-2011, 05:54 PM
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I think that if you are having an issue with a brand of shock you should enlighten us all with a name. There may be others with the same brand having the same issue, or you may prevent someone else from having the same issue..

Jeff _(OllllllO)_



08 Black and Khaki JK Sahara Unlimited, Dual Tops, MyGig, Tow pkg, Trax-Lok Rear Diff,
Mods -- 3.5" Rock Krawler front springs, 2.5 TerraFlex BB rear, Mopar D44HD/J8, OX Locker, RCVs, 37x12.50x17 Pitbull Rockers on ProComp 7069, AEV Premium front bumper, Smittybilt X2O 12K Comp winch.
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post #5 of 9 Old 09-03-2011, 05:54 PM
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Shocks

measure the bumpstop distance without the foam pad, they do squash all the way up. Even better, remove the coils and tests articulation. Although your distances do sound OK.



Quote:
Originally Posted by dkrz123 View Post
As of today, this makes 3 front shocks with blown seals in the last 10 months (same company). Right now both my fronts are leaking hydraulic fluid badly and need to be replace ASAP. These shocks are the ones that come with the lift I got and are supposed to be tuned for the JK...

I have NOT gone wheeling in over 3 months. They both started leaking about 3 days ago. The driver's side one really bad at first and now the other side as well.

So I called the company and they looked up my lift kit they sold me and saw that I have 2" front bottom bump-stops. The guy said that is probably my issue and that the shocks must be bottoming out. He said I really should have 3" stops. Ok fine. So I took some measurements and this is what I found.

The space between the contact points of the top and bottom bump-stops is 2.5"
The exposed portion of the shock shaft (part that travels) is 4.25". (level ground)

Unless that upper factory rubber stop compresses all the way, I can't imagine how the shock can be bottoming out. Especially on normal roads and highways.

I don't wheel it very hard and only about once every 2 months or so. I do disconnect the sway bars when I'm off road though.

Can anyone enlighten me? Do those measurements seem normal or should I really get 3" lower stops? If I did, that would only leave 1.5" of space between the contact points. Seems too small a gap to me...

Thanks in advance for any help regarding this!
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post #6 of 9 Old 09-03-2011, 08:52 PM
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I think it's product defect.

How is that seal working out for you?

2008 JK X 2DR NSG370

Time to build the TONS!

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Quote:
Originally Posted by jester116th View Post
Confucius say "If you no want break axle, Drive with BIG head not LITTLE head"
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post #7 of 9 Old 09-04-2011, 02:25 AM Thread Starter
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Quote:
Originally Posted by Suffolk JK View Post
How is that seal working out for you?
Seal's working great. Thanks!

Quote:
Originally Posted by Suffolk JK View Post
I think it's product defect.
You're probably right.
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post #8 of 9 Old 09-04-2011, 04:55 AM
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I don't know why people have to be so silent as to naming the company, on what could be, a bad batch of shocks. He's running Poly Performance's shocks. He's not bad mouthing them, just asking a general question if anyone else is running into this problem. He's gone through a few shocks already and I've seen his truck, he has PLENTY of bumpstop, too much IMO. I'm running stock bumpstops on 3.25" of lift and ZERO issues. Shocks aren't bottoming out and have plenty of axle movement, though shocks aren't PPs.

2008 JK X 2DR NSG370

Time to build the TONS!

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Quote:
Originally Posted by jester116th View Post
Confucius say "If you no want break axle, Drive with BIG head not LITTLE head"
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post #9 of 9 Old 09-04-2011, 07:04 AM
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This is what mine looked like.




Edit: I've had a few PM's regarding this. The picture is an old shock. I was just trying to see if that is what what going on with the op. My situation was handled exceptionally by Poly.

Last edited by spedly; 09-06-2011 at 11:25 AM.
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