Suspension and Chassis Questions about your suspension? Need chassis advice?

Are the spohn adj lower control arms good for the street

Old Aug 19, 2002 | 10:19 PM
  #1  
Terry Kennedy's Avatar
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From: Stillwater OK
Car: 88 IROC
Transmission: pg
Axle/Gears: 9" w/3.89
Are the spohn adj lower control arms good for the street

I'm wanting to know if these will be ok for the street there the
Spohn lca with Adjustable Spherical Rod End's

http://www.spohn.net/index.cfm?fusea...ct&productid=1
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Old Aug 20, 2002 | 12:49 AM
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Car: 86 LG4 & 92 TBI Firebird
Engine: The Mighty 305!
Transmission: 700R4
Axle/Gears: 3.42
They're great if you don't mind hearing clunk clunk as you go down the street. The problem i had was the jam nuts loosening. Also, there is no road in town that isn't dug up or has 100 pot hole patches in it. But if you want the best, bind free suspension, the rod end is the only way to go.
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Old Aug 20, 2002 | 09:25 AM
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Justin, why did they clunk? They're rod ended so they don't bind and they were the ones I was eventually going to get. They're one of the only ones that I've seen that actually perform the task they're supposed to correctly (without binding) - or so they say.
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Old Aug 20, 2002 | 10:55 AM
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If your jamnuts are loosening, something is binding.

Clem
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Old Aug 20, 2002 | 12:14 PM
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Car: 91 Camaro RS
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clunking could have been the cause of a worn sperical rod end or maybe because alot more of the road noise is being transmited into the cabin. Steve says that under normal street driving conditions the sperical rod ends should need replacing about every year. Once I get the money together I plan on going with the double ended, I'll just get a better sound system to mask the noise.
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Old Aug 20, 2002 | 12:34 PM
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Car: 86 LG4 & 92 TBI Firebird
Engine: The Mighty 305!
Transmission: 700R4
Axle/Gears: 3.42
Originally posted by pianiy
Justin, why did they clunk? They're rod ended so they don't bind and they were the ones I was eventually going to get. They're one of the only ones that I've seen that actually perform the task they're supposed to correctly (without binding) - or so they say.
The clunking is because the LCAs rotate. Because of the rod ends at both ends, the whole LCA is alowed to rotate, so when it rotates as far as it can, it hits the bolt and spacers that holds the LCA to the frame. When you go over bumps, they wiggle and make a clunk sound. This is why many buy a combo poly/rod end. The poly bushing doesn't allow the LCA to rotate, plus it as a bit of shock cusioning.

In addition, as the rod end wears, there becomes a greater tolerance and the rod end become loose.
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Old Aug 20, 2002 | 05:26 PM
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Car: 91 Camaro RS
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wow my guess was way off. how loud was the clunking sound?? Enough to get on your nerves after awhile or just one of those occasional things?? I may have to rethink my purchase
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Old Aug 20, 2002 | 08:38 PM
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Car: 86 LG4 & 92 TBI Firebird
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Transmission: 700R4
Axle/Gears: 3.42
Originally posted by grafx
wow my guess was way off. how loud was the clunking sound?? Enough to get on your nerves after awhile or just one of those occasional things?? I may have to rethink my purchase
To me it sounds like a box of tools rattling in the back. No noise on smooth roads, and oddly enough, I can't hear the noise with my windows down. But the roads around town are awful. Even freshly paved roads get dug up a few months later when they realize they need to install water pipes or manhole covers I've found that spraying the ends down once a week with WD40 will keep them fairly quiet. I'm sure there is something better to use on them, but I never felt like experimenting.
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Old Aug 21, 2002 | 02:04 AM
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I've been running the combo poly/rod end Spohn LCA's for a couple years now. They've been great.

I started with the poly/poly ends and had a problem with the jams loosening up. I then bought a pair of rod ends from Steve and converted my LCA's into the combo set-up. I also installed better lock nuts at the same time.

I plan to convert my adjustable Panhard Bar to the combo set-up as well.
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Old Aug 21, 2002 | 10:18 AM
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From: So. California
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hey Bret how much of a difference did you notice going from the poly set-up to the combo set-up??
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Old Aug 21, 2002 | 11:16 AM
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Originally posted by grafx
hey Bret how much of a difference did you notice going from the poly set-up to the combo set-up??
It's tough to say. Especially with the jam nuts coming loose when I had the poly/poly set-up. With the nuts loose, the poly ends would rotate slighty, so they were kind of acting like the rod ends.

The rod ends are the better way to go if you want your car to handle really well. Rod ends will wear out quicker though. My daily commute is pretty short so mine have held up really well.

The poly/rod end combo is less harsh and good for a daily driven street car. I have the poly bushing on the body side with the rod ends at the axle.

Hope this helps.
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Old Aug 21, 2002 | 01:30 PM
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From: Pflugerville, TX USA
Car: 1999 Camaro Z28
Engine: LS1 V8
Transmission: T-56 6spd
I have the poly/poly adj arms and have been happy with them so far. I installed them early May 2002 so I do not have any long term reports to give.
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