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9 bolt iron caliper springs different???

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Old 01-24-2012, 01:18 AM
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9 bolt iron caliper springs different???

I pulled apart my 9 bolt iron calipers and found the large piston springs are different. One is 3.25 inches and the other 4 inches in length and the shorter one feels stiffer. Is this normal? Is one correct and the other not? Does it matter which side they go on? Everything else looks identical between the two.
Old 01-24-2012, 07:42 AM
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Re: 9 bolt iron caliper springs different???

Originally Posted by Base91
I pulled apart my 9 bolt iron calipers and found the large piston springs are different. One is 3.25 inches and the other 4 inches in length and the shorter one feels stiffer. Is this normal? Is one correct and the other not? Does it matter which side they go on? Everything else looks identical between the two.
Interested, I checked both my Parts & Illustration Catalogues, but neither showed different balance springs.

JamesC
Old 01-24-2012, 10:56 AM
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Re: 9 bolt iron caliper springs different???

They looked original too. Does the catalog give the dimensions of the 'standard' one?
Old 01-24-2012, 11:07 AM
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Re: 9 bolt iron caliper springs different???

Originally Posted by Base91
They looked original too. Does the catalog give the dimensions of the 'standard' one?
No dimensions unfortunately.

JamesC
Old 01-24-2012, 12:04 PM
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Re: 9 bolt iron caliper springs different???

One is the spring from the old, flawed design, and one is from the new, "fixed" design.
Old 01-24-2012, 12:21 PM
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Re: 9 bolt iron caliper springs different???

Originally Posted by Apeiron
One is the spring from the old, flawed design, and one is from the new, "fixed" design.
Wondered if that might be the case.

Info/pics below that might be helpful:

http://www.flynbye.com/catalog/i208.html

The GM part number listed in the link is still good at GMPartsDirect if you have need.

JamesC

Last edited by JamesC; 01-24-2012 at 12:23 PM. Reason: Additional Info
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