Rear Shock Absorber - JeepForum.com
 
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post #1 of 12 Old 03-07-2019, 06:17 AM Thread Starter
JWELK
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Rear Shock Absorber

What can cause this?
I replaced all the shocks Jun 2016 at 207 thousand, with one of the parts stores brand. Medium duty.
On Jan 19 at 249K the left rear broke, just like the attached pix. Soooo, I bought Gabriel Ultra, it failed last night at 251.4 K. Any ideas as to what could cause this?

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post #2 of 12 Old 03-07-2019, 09:07 AM Thread Starter
JWELK
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That may be, but it has only been in service for 47 days, 2000 miles
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post #3 of 12 Old 03-07-2019, 10:41 AM Thread Starter
JWELK
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I looked at it, while there is some paint on the bushing(s) they are not dry rotted. The end that broke, dragged on the pavement until I was able to pull over. Took it back to the store, it has a "lifetime" warranty. He stated his experience was "overloaded, bolts over torqued, or towing too heavy a load". None of those apply. Gabriel has yet to respond.........I'll keep you posted.
I have been driving for over 50 yrs. I have never before replaced shocks. Including a '76 Century (aka Kojak special) for 300 K. After I left the company it was driven for another 125K.
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post #4 of 12 Old 03-07-2019, 11:24 AM
RogerP
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Any lift?
Did the bolts tear out of the top? Or did you remove them?
Did the crossbar on the top of the shock bend or snap?

Almost seems like your overextending them to cause them to rip down like that.
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post #5 of 12 Old 03-07-2019, 01:37 PM Thread Starter
JWELK
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No lift, bout as stock as you can get. It snapped at the top. One of the forks broke. The roads are rough, no question. I did unbolt it to install the new one, both bolts were there. If I "overextended" it which makes a bit of sense, what would I look for? The shackles that hold the axle to the leaves is intact. That only the driver side failed important?
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post #6 of 12 Old 03-07-2019, 02:00 PM
RogerP
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Overextend would happen if say you put a shock that will support a 0-2inch lift on a 3inch lifted vehicle.

Odd the forks broke, but that can happen. That is the reason they make/sell fork eliminators for shocks.

Ref this type: https://www.quadratec.com/products/16030_101.htm

And this type:

Very odd luck though that you had it happen 2x. I've not had it happen ever.
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post #7 of 12 Old 03-12-2019, 03:49 PM Thread Starter
JWELK
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Gabriel contacted me. Asked about the "lift" from the lower shock bolt to the top is supposed to be 11 - 20 inches, I'm at 16. So, it seems we are stumped. When the first one failed, there was a loud bang. I was going over 2-3 inch ruts. (Water main break 2 yrs ago, that was filled in with dirt, but never paved. Sort of typical)
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post #8 of 12 Old 03-12-2019, 04:04 PM
dented
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I think a loose bolt would allow the bar pin to move around get leverage and break. They do move a bit by nature. The Jeep attachment point looks REALLY good. So many are rusted out. Go with a bar pin eliminator up top. Make sure the shocks you buy do not come with bar pins installed. Then can be a pain - impossible to get out.

They will perform better and not make noise over rough terrain.
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post #9 of 12 Old 03-13-2019, 12:08 AM
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Quote:
Originally Posted by JWELK View Post
No lift, bout as stock as you can get. It snapped at the top. One of the forks broke. The roads are rough, no question. I did unbolt it to install the new one, both bolts were there. If I "overextended" it which makes a bit of sense, what would I look for? The shackles that hold the axle to the leaves is intact. That only the driver side failed important?
If the bolts are properly torqued, there can be no movement to cause the bar pin to break. The bolts that hold them in place are a whole different story though.

Quote:
Originally Posted by jeepinmichguy_ View Post
TheBoogieman is a jerk.
GOT IT BACK 6/17. 03' Rubicon/Zone 4.25" combo lift with 4" lift coils up front/Zone hydro shocks/5.13 gears/35" Mickey Thompson MTZ P3 tires/Black Magic brakes. Jeep #17 & 19.
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post #10 of 12 Old 06-03-2020, 01:52 PM Thread Starter
JWELK
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Lost the pass side over the weekend. Gabriel Ultra. I had ordered the Bar Pin Eliminators, but as mentioned above, I could not remove the forks. @RogerP ;@TheBoogieman;@Dented. I'm looking at the Rancho series. Any idea how you order them without the fork?
Thanks
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post #11 of 12 Old 06-03-2020, 02:54 PM
dented
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I would reach out the company directly. Bilstein sells them as a regular product. A dealer may not be able to help you. Call the company and see if it is ever an option.

I have found Standard sizes have the forks. Less popular sizes you have to add bar pins or mounting brackets
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post #12 of 12 Old 06-03-2020, 03:29 PM
RLE
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For what it's worth, here in Africa we have terrible rutted roads, too, and
the suspension gets a real workout several days a week. I put Monroe 37027
Sensa-Tracs Oem ride quality on the rear in 2012 and they did well. I replaced
them two years ago with KYB Excel-G Oem also but one of them failed so
I put one of the old Monroes back on and it is still going. I bought some new
Monroes recently for when I think they need to be changed. At about $30 apiece
I think they are a very good value.

Make sure your rear bump stops have 2 or 3 inches of rubber still on them.
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