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04-18-2018, 07:03 PM
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#1 |
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Registered User
 Join Date: May 2005
Location: Reading, Kansas
Posts: 628
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Testing old springs
My son bought a rebuilder 1971 chevy 1/2 ton short bed step side and is going to replace original rear springs with new. My question is how can a guy check the tension on the old springs to see if they are still usable as i have one sagging rear spring that I would like to replace with one of my son's take offs. I know I can replace with new but don't want to spend the money. TIA
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04-18-2018, 08:01 PM
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#2 |
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Senior Member
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: Testing old springs
Change them as a pair.
Jimmy
__________________
60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
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04-18-2018, 08:14 PM
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#3 |
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Registered User
Join Date: May 2005
Location: Reading, Kansas
Posts: 628
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Re: Testing old springs
That sounds reasonable but want to make sure the stiffness of the springs are still at oem specs, that is why I wanted to know about spring stiffness testing and how to do it.
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04-18-2018, 08:57 PM
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#4 |
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Registered User
Join Date: Jan 2013
Location: Las Vegas, NV
Posts: 1,851
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Re: Testing old springs
That's a spring shops job... they build and have machines and knowledge. Going out on a limb but 40 year old Springs are gonna be badd
__________________
1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081 |
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04-18-2018, 08:58 PM
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#5 |
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Registered User
Join Date: Jan 2013
Location: Las Vegas, NV
Posts: 1,851
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Re: Testing old springs
Ever hang out at lowes or home depot no one ever overloads
__________________
1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081 |
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04-18-2018, 09:06 PM
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#6 |
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Registered User
Join Date: May 2005
Location: Reading, Kansas
Posts: 628
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Re: Testing old springs
That makes sense sounds like new is the way to go, thanks for your input. Do you know what these oem springs are rated at?
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04-19-2018, 06:45 AM
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#7 |
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Senior Member
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: Testing old springs
Here is some information on the spring rates.
Jimmy http://67-72chevytrucks.com/vboard/s...t=spring+rates
__________________
60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
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