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nicknack

newbie
Joined: Thu Oct 06, 2016 8:32 pm Posts: 4
Vehicle: Sierra 1987
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 Posted: Sun Jan 22, 2017 7:59 pm |
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Hoping I can get some advice on a suspension upgrade for my 87 sierra. The ride is currently very rough... from what I can see the springs and shocks are pretty knackered, especially the rear. Found these on Ebay (link below) and was wondering if they are any good. I will not be doing any thing heavy with my rig, beach, sandhills, corrugated country roads, that kind of thing. Thanks in advance. http://www.ebay.com.au/itm/Suzuki-Sierr ... 1940346570
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Asho
Joined: Wed Sep 07, 2016 2:18 pm Posts: 45 Location: Cairns
Vehicle: Sierra SJ70
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 Posted: Mon Jan 23, 2017 6:04 am |
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Putting new shocks and springs in, is almost guaranteed to improve the ride over the original gear. However, it can be just as affordable to find a suspension guy in your area to custom make the springs for you. Also the set includes gas shocks that will give a decent ride, but because of the light nature of a sierra oil shocks give a far better ride. Most of the old guys who have owned the sierras for a long time will recommended nylon bushes over rubber.
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
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 Posted: Mon Jan 23, 2017 7:40 am |
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I couldn't disagree more.
Most aftermarket springs, and especially those eBay springs, will not improve ride. The softest riding aftermarket leaves are Old Man Emu (ARB)
Finding an actual spring maker who would match the performance of Old Man Emu springs will be a very difficult and costly exercise. Most will do the old "reset and add a leaf" which won't help anything.
The valving in a shock dictates its ride characteristics. All shocks contain oil. Foam cell shocks still contain gas (on this case air) but at low pressure, the foam serving to reduce emulsification of the air into the oil. They aren't very effective. Almost all shock currently available contain nitrogen at some pressure to reduce emulsification. Some shocks are monotube and separate the high pressure gas from the oil with a floating piston. These can be incredibly soft riding. I have bilstein monotube "gas" shocks in my car and they are incredibly plush.
Most people I know who have owned Sierras for some time have given up on urethane bushes and gone back to rubber to improve flex and ride quality.
Nisknack- if you want the best ride quality and don't want to be messing with derating leaves and trying to find soft shocks etc just go for Old Man Emu.
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Asho
Joined: Wed Sep 07, 2016 2:18 pm Posts: 45 Location: Cairns
Vehicle: Sierra SJ70
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 Posted: Mon Jan 23, 2017 12:18 pm |
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Ok I have to agree with Steve now, I was expecting a set of old man emus to cost an arm and leg... Comparing their only about $150 more, I would go for them.
As for the part about custom built springs, that still stands but then again I know an old guy who has made me a custom built set for $480.
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
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 Posted: Mon Jan 23, 2017 12:57 pm |
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They outperform Old Man Emu for ride?
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MrRocky
Joined: Thu Dec 17, 2009 10:30 pm Posts: 4731 Location: perth
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 Posted: Mon Jan 23, 2017 3:56 pm |
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Worth mentioning all susp kits off the shelf will ride quite stiff until they wear in a little
_________________ ...
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Asho
Joined: Wed Sep 07, 2016 2:18 pm Posts: 45 Location: Cairns
Vehicle: Sierra SJ70
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 Posted: Mon Jan 23, 2017 5:10 pm |
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I admit I have never driven a zook with old man emus, but the ride went from "back shatterer" to "corrugation? what corrugation?"...*slight exaggeration*
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nicknack

newbie
Joined: Thu Oct 06, 2016 8:32 pm Posts: 4
Vehicle: Sierra 1987
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 Posted: Mon Jan 23, 2017 6:36 pm |
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
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 Posted: Mon Jan 23, 2017 7:51 pm |
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OME is very expensive in the US compared to local brands.
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