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12-01-2019, 06:09 PM
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#1 (permalink) |
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Registered User
Join Date: Sep 2007
Member # 99570
Location: BC Canada
Posts: 336
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Bump stops....rubber vs urethane vs EVA
Gents,
I'm needing to buy / install some front bump stops on my samurai. My zuk is heavier than stock...….diesel, frame mods, heavy steel bumpers, sliders....you get the idea..... Guessing my zuk is 2600 lbs or so..... I have 3.75" of front suspension compression before the leaf springs flatten. I like the OME 5 pack springs and their spring rate. The Bilstein shocks with valving works well too, but still hit my solid-rubber bump stops on hard hits while on the pavement at speed, and on deep holes on logging roads that I haven't slowed down for. The current solid rubber stops are harsh with essentially no compression. I'm trying to research which ?universal? bump stops would be compressible by at least one inch on these big hits, in my zuk. None of the manufactures......Daystar, Energy Suspension, etc, etc publish these specs on their products......so I'm left "guessing" if a particular bump stop will fit my needs. A universal bump stop for an F350 sure ain't going to work for my application..... Any real-world experience on which bump stops are soft and compressible, for a 2600 lb truck? Hydraulics are not an option for me at this time......keeping my search oriented towards rubber, urethane or EVA springs or stops. Oh yeah...….something in the 2.5" tall size is what I can easily fit. The "gap" to fit them is only about 5.5" to 6" in height....and within that gap I will need to fit the bump stop and any bracket that needs to be fabbed. |
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12-02-2019, 09:42 AM
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#2 (permalink) |
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Registered User
Join Date: Mar 2012
Member # 213125
Location: Las Vegas
Posts: 2,719
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Go to any junkyard. It’s literally full of hundreds of nice soft OE bumpstops. Get the ones that fit your requirements.
 Plus side is they will only cost a few dollars.
Last edited by Aisin; 12-02-2019 at 09:42 AM. |
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12-02-2019, 08:45 PM
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#3 (permalink) |
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Zeus of the Sluice
Join Date: Nov 2007
Member # 102395
Location: At the Lab
Posts: 2,951
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Timbren...
That is all 
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12-02-2019, 09:56 PM
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#5 (permalink) | |
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Registered User
Join Date: Sep 2005
Member # 53528
Location: norcal
Posts: 15,180
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Quote:
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12-03-2019, 10:41 AM
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#6 (permalink) | |
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Zeus of the Sluice
Join Date: Mar 2001
Member # 3835
Location: Bakersfield, CA
Posts: 4,619
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Quote:
https://timbren.com/aeon-springs/ They used to have a really good chart showing all the different dimensions with different part #s for different springs, but couldn't find it just now - looks like their site's been updated. Showed stuff like regular dimensions, max deflection dimensions, weight rating, etc. Actually had stats to help build your suspension at full bump, and with the product specs offered, if you got a spring that was too stiff, you could just order the same thing with a lower weight rating.
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12-05-2019, 07:55 AM
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#10 (permalink) | |
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Registered User
Join Date: Dec 2009
Member # 149176
Location: Southbury CT
Posts: 1,091
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Quote:
I went through so many polyurethane Daystar ones. One hard hit they shatter. I moved over to Timbren after doing some research and been racing a few years on them and still look like new. I would have 2-3 shattered Daystar ones after a race. I contacted Daystar they said they are just not design for hard hits. The Timbren might be large but they really work. http://timbren.wpengine.netdna-cdn.c...ns-r070815.pdf I run the A00540-65
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To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Sponsors: Corbeau, Tom Wood, PSC, Polyperformance, Inner Air Lock, Miller Welds, Heavymetal Concepts, Clayton Offroad, Baileigh Last edited by customcreationsllc; 12-05-2019 at 08:07 AM. |
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12-05-2019, 10:07 AM
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#11 (permalink) |
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Registered User
Join Date: Dec 2006
Member # 83301
Location: Chambersburg, pa
Posts: 6,195
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timbren are decent if you know the application you need. I am running s10 blazer rear bumpstops as the secondary bump, with smaller hard rubber as the the final stop stop...
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'79 chevy k30 vortec 350/sm465/205/205/5.13's 40" NITTO trail grapplers on dirtylife beadlocks. |
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12-06-2019, 11:28 AM
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#12 (permalink) |
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Registered User
Join Date: Apr 2004
Member # 29113
Posts: 742
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Timbrens are the way to go.
This is what I used on a TJ and a JK. Timbren a525-65 https://www.sdtrucksprings.com/index...ducts_id=31546 Here is the Timbren comparison chart http://timbren.com/wp-content/upload...ring-Chart.pdf |
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