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rough riding c2, help

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Old Apr 9, 2015 | 12:41 PM
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Default rough riding c2, help

still dialing in my new C2, so far so good, however she really jars and shakes on rough roads, I notice the leaf spring is pretty flat, so changing that seems like a good idea, does anyone have an opinion as to best source to get from? or type??? composite/fiberglass? stock style?

what about the front? new shocks?? springs? any other ideas??

any help would be great, I did scour previous posts

also, I put some vasoline on the deck seals to help with the squeaks, can that damage them?
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Old Apr 9, 2015 | 12:48 PM
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Go with all OEM parts. You will be glad you did for a driver car. Also make sure all your bushings are fine too and not wore out. That includes body mount bushings
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Old Apr 9, 2015 | 12:51 PM
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Default on a stock leaf

Originally Posted by old68
still dialing in my new C2, so far so good, however she really jars and shakes on rough roads, I notice the leaf spring is pretty flat, so changing that seems like a good idea, does anyone have an opinion as to best source to get from? or type??? composite/fiberglass? stock style?

what about the front? new shocks?? springs? any other ideas??

any help would be great, I did scour previous posts

also, I put some vasoline on the deck seals to help with the squeaks, can that damage them?
on a stock leaf spring go 7 or 9 leaf?????
looking for a softer cruising ride BTW
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Old Apr 9, 2015 | 12:56 PM
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9 unless you have F41 that only came with BB cars
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Old Apr 9, 2015 | 01:18 PM
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Default got it

Originally Posted by Nowhere Man
9 unless you have F41 that only came with BB cars

thanks, sounds like 9 leaf stock is way to go over mono leaf,


what about shocks?? KYB? Koni?? thinking , do it right the 1st time
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Old Apr 9, 2015 | 01:25 PM
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Originally Posted by old68
still dialing in my new C2, so far so good, however she really jars and shakes on rough roads, I notice the leaf spring is pretty flat, so changing that seems like a good idea, does anyone have an opinion as to best source to get from? or type??? composite/fiberglass? stock style?

what about the front? new shocks?? springs? any other ideas??

any help would be great, I did scour previous posts

also, I put some vasoline on the deck seals to help with the squeaks, can that damage them?
Nice car!

1. I'm with Nowhere Man when it comes to using OEM parts. Get under the car or, if your lucky enough to have access to one, put it up on a lift and look at all the bushings for wear or degradation. Personally, I wouldn't go messing with the body mounts right now unless they're in really bad shape.

2. If you need to replace them, DO NOT use polyurethane bushings no matter how much the vendor touts them!

3. Check with Eaton springs for your rear spring and get a 9 leaf unless you like a stiff suspension.

4. Use a silicon or teflon product on rubber parts. Any petroleum products like Vaseline aren't good for rubber.

5. Check the shocks (front & REAR) by pushing down on each bumper. If the car bounces more than once they probably need replacement (if you're in question as to which type to use, do a forum search as opinions are MANY).

6. Have your wheels balanced and an alignment done.

Gary

Last edited by Gary's '66; Apr 9, 2015 at 01:47 PM.
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Old Apr 9, 2015 | 01:31 PM
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Try to post some pictures of the front and rear installed springs so we can see what you currently have on it. If you have a 9-leaf spring now and std coils it's not going to improve any unless bushings are shot. The leaf spring should be pretty close to flat. A better way to judge it is to look at the half shafts. Usually if the spring is OK there will be a little angle down from the differential to the trailing arms. If the half shafts are nearly level when sitting on the suspension then the spring may be worn or incorrect spring link bolts are installed.

Dielectric grease (silicon) works well on rubber seals. Vasaline may not be all that different from it - don't know.
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Old Apr 9, 2015 | 01:47 PM
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Default pics

Originally Posted by DansYellow66
Try to post some pictures of the front and rear installed springs so we can see what you currently have on it. If you have a 9-leaf spring now and std coils it's not going to improve any unless bushings are shot. The leaf spring should be pretty close to flat. A better way to judge it is to look at the half shafts. Usually if the spring is OK there will be a little angle down from the differential to the trailing arms. If the half shafts are nearly level when sitting on the suspension then the spring may be worn or incorrect spring link bolts are installed.

Dielectric grease (silicon) works well on rubber seals. Vasaline may not be all that different from it - don't know.
these are all I've got, no lift at home
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Old Apr 9, 2015 | 01:51 PM
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Originally Posted by old68
these are all I've got, no lift at home
From what I can tell which, isn't much, the stabilizer bushings look pretty good. Could be wrong, but left front tire looks worn on the inside. If you don't have a lift (most of us don't) use a floor jack and 4 good jack stands to look/work on it.

Gary

Last edited by Gary's '66; Apr 9, 2015 at 01:59 PM.
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Old Apr 9, 2015 | 01:55 PM
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Default DUH, I can just put a camera under

Originally Posted by old68
these are all I've got, no lift at home
e

heres whats back ther
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Old Apr 9, 2015 | 01:56 PM
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Default 7 leaf?

Originally Posted by old68
e

heres whats back ther
7 leaf?
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Old Apr 9, 2015 | 02:01 PM
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Originally Posted by old68
7 leaf?
Looks like a 9.

Gary
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Old Apr 9, 2015 | 02:10 PM
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rear spring looks totally flat
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Old Apr 9, 2015 | 02:10 PM
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Car height looks pretty good. I'm betting a new set of four KYB gas shocks will really smooth out your ride. How old are your tires? They can get very hard (and unsafe) over time. And, as stated, if any bushings are worn out, go with OE rubber...stay away from urethane.
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Old Apr 9, 2015 | 02:20 PM
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I can't tell you how much four inexpensive kyb shocks helped my car handle a few weeks ago.

On another topic...is there a c2 that doesn't ride rough?! It goes with the territory.
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Old Apr 9, 2015 | 02:20 PM
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Default tires are new

Originally Posted by leif.anderson93
Car height looks pretty good. I'm betting a new set of four KYB gas shocks will really smooth out your ride. How old are your tires? They can get very hard (and unsafe) over time. And, as stated, if any bushings are worn out, go with OE rubber...stay away from urethane.


tires are new Coker classic radials, just had 4 wheel alignment done, car was within all tolerances and adjusted a tiny bit
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Old Apr 9, 2015 | 02:23 PM
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Originally Posted by old68
7 leaf?
Well, which is it? 7 or 9. If it's 7 and the front springs match that 7 leaf is spring rate you have just found out why you have such a firm ride. Congratulations. That could be the factory F 41 suspension package. Shocks are stiff to boot.

Before I started spending a bunch of money on it, I'd have it looked at, in person, by someone who knows Corvettes.
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Old Apr 9, 2015 | 02:24 PM
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Default maybe

Originally Posted by old68
tires are new Coker classic radials, just had 4 wheel alignment done, car was within all tolerances and adjusted a tiny bit
maybe 4 kyb's and a new standard 9 leaf spring would be a decent upgrade, would I need the plastic liner for the spring?

should I redo the front springs? what about the 460 touring springs?

I don't mind a a stiff ride, its more on slow , rough country roads , the car chatters, can't be good for the body
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Old Apr 9, 2015 | 02:27 PM
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Default trim code is F1 4AC

Originally Posted by MikeM
Well, which is it? 7 or 9. If it's 7 and the front springs match that 7 leaf is spring rate you have just found out why you have such a firm ride. Congratulations. That could be the factory F 41 suspension package. Shocks are stiff to boot.

Before I started spending a bunch of money on it, I'd have it looked at, in person, by someone who knows Corvettes.
does that compute?
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Old Apr 9, 2015 | 02:29 PM
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Default oops,

Originally Posted by old68
does that compute?
oops # mix up
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