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Is This Normal??

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Old Apr 27, 2007 | 09:24 AM
  #1  
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sly vette
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Default Is This Normal??

I purchased a used 330# VBP rear spring that came with the appropriate Bilstein shocks.
The spring went in easily. However the shocks seem to be too short!
When I went to install the shocks, I found that even under a load I had a heck of a time getting the shocks to come down far enough to mount on the lower shock mount.
Is this normal?
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Old Apr 27, 2007 | 11:08 AM
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After installing a 360# rear monospring on my 72, I mounted a pair of Bilsteins and they went on fine. It kind of sounds the total stroke of the shocks you got might be too short.

BB NJ Ken
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Old Apr 27, 2007 | 05:51 PM
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Bilstiens are nitrogen charged, they extend fully by themselves, taking about 40lbs. to compress. If you had to extend them by hand, something's wrong with them. You should have to compress them to install if the car was sitting on the ground with suspension compressed(if that is what you ment by "under a load"). If you mean the shocks weren't long enough with the car up on stands and the susp. in full droop then you're probably fine, the susp., when unresticted, will droop further then the shocks will allow.
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Old Apr 28, 2007 | 09:07 AM
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I had the car resting on the ground and I had to have some one sit on the rear end to get them to go on and it still was very tight.
Were there differences in length of travel from one year to another? These came out of a '72 and they are tight on a '69.
I didn't expect there to be any difference.

Last edited by sly vette; Apr 28, 2007 at 09:18 AM.
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Old Apr 28, 2007 | 10:22 AM
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I'm in the middle of putting that same set up on my '69. I measured my Bilstien Sports and they are 14 1/4 " fully extended which they will be unless you compress them.

Hope this helps,
Steve
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Old Apr 28, 2007 | 10:51 AM
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You will need to jack up the spindle support to get the shock on.
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Old Apr 29, 2007 | 08:06 AM
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Originally Posted by roadrocket
I'm in the middle of putting that same set up on my '69. I measured my Bilstien Sports and they are 14 1/4 " fully extended which they will be unless you compress them.

Hope this helps,
Steve
Steve,
So you're saying that you have to compress yours to get them on??
That's why I can't understand why I had a hard time trying to get mine to reach each mount.
I had to jack up one lower control arm at a time, till the frame was off the jack stand, and then they were not quite long enough, till I had someone sit on the rear of the car.
Do they make different shocks for Coupes and Convertibles?
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Old Apr 29, 2007 | 09:52 PM
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Originally Posted by sly vette
Steve,
So you're saying that you have to compress yours to get them on??
That's why I can't understand why I had a hard time trying to get mine to reach each mount.
I had to jack up one lower control arm at a time, till the frame was off the jack stand, and then they were not quite long enough, till I had someone sit on the rear of the car.
Do they make different shocks for Coupes and Convertibles?
I did have to jack up my trailing arm just a little to get the shock to reach the mount. Didn't take much though, maybe an inch.
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Old Apr 29, 2007 | 10:27 PM
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This is normal...
Originally Posted by roadrocket
I did have to jack up my trailing arm just a little to get the shock to reach the mount. Didn't take much though, maybe an inch.
This is not...unless...
Originally Posted by sly vette
Steve,
So you're saying that you have to compress yours to get them on??
That's why I can't understand why I had a hard time trying to get mine to reach each mount.
I had to jack up one lower control arm at a time, till the frame was off the jack stand, and then they were not quite long enough, till I had someone sit on the rear of the car.
Do they make different shocks for Coupes and Convertibles?
Sly, if you had the car on stands under the frame and had to jack the control arm up till the frame lifted something is amiss. Either wrong/damaged shocks (they are same length for all C3's), spring is wrong somehow, or there is excessive binding in susp. Give us a little more detail about your process, meaning measurents of shock, how far you had to jack c-arm up, and position of spindle in relation to ride height.
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