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Old 05-06-2019, 03:40 PM   #1
richards72chevy
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What is a screw jack suspension?

Reading another forum and this popped up.Any body have any experience with it?Jack Hughes' 50 Olds b KKOA2 p170.jpg
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Old 05-06-2019, 03:41 PM   #2
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Re: What is a screw jack suspension?

Sorry I thought I posted this on the suspension side.
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Old 05-06-2019, 08:38 PM   #3
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Re: What is a screw jack suspension?

Just a guess but Stock Cars and dirt track cars have a big screw on top of the springs so they can adjust the height/load on each wheel. I am guessing something like that so they can adjust the right height.
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Old 05-07-2019, 02:48 PM   #4
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Re: What is a screw jack suspension?

Sounds like coilovers to me.
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Old 05-07-2019, 03:25 PM   #5
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Re: What is a screw jack suspension?

I saw a 56 ford pickup once in San Diego that had (claimed) Nascar suspension where he had s crew type cranking mechanism on all fours to adjust the suspension. AKA Wedge adjustment, simply refers to adjusting the amount of force that bears down on a tire's spring.
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Old 05-14-2019, 01:25 PM   #6
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Re: What is a screw jack suspension?

This is a kind of screw jack or weight jack. You will see in the picture the cup the spring sets in and an all thread bolt sticking out the top that can be twisted to raise and lower the height of the truck. But more importantly it can also "corner balance" the truck for desired weight distribution.
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Old 05-21-2019, 12:07 PM   #7
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Re: What is a screw jack suspension?

Quote:
Originally Posted by 69gmcc10 View Post
This is a kind of screw jack or weight jack. You will see in the picture the cup the spring sets in and an all thread bolt sticking out the top that can be twisted to raise and lower the height of the truck. But more importantly it can also "corner balance" the truck for desired weight distribution.
I remember that build from a long time ago. He did some really cool stuff on it.
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Old 05-21-2019, 02:45 PM   #8
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Re: What is a screw jack suspension?

hey I have a 50' olds. it has fatman spindles also. I haven't gotten it on the rd yet this year.

These cars have factory "truck arms" with rear coils to begin with so a setup like above would make sense. I've heard 67-72 c10 rear coils will lower them 4-5" in the back. Haven't messed with that yet. Plan to do a gasser type build have a hopped up Cadillac 472 for it.
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Old 05-23-2019, 02:17 PM   #9
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Re: What is a screw jack suspension?

Quote:
Originally Posted by tinydb84 View Post
I remember that build from a long time ago. He did some really cool stuff on it.
Agreed. I have it & several pics saved,
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Old 06-07-2019, 07:30 PM   #10
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Re: What is a screw jack suspension?

Quote:
Originally Posted by cashforclunkers View Post
hey I have a 50' olds. it has fatman spindles also. I haven't gotten it on the rd yet this year.

These cars have factory "truck arms" with rear coils to begin with so a setup like above would make sense. I've heard 67-72 c10 rear coils will lower them 4-5" in the back. Haven't messed with that yet. Plan to do a gasser type build have a hopped up Cadillac 472 for it.
Nice Oldsmobile.
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Old 06-07-2019, 07:33 PM   #11
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Re: What is a screw jack suspension?

Thanks for all the information.I enjoy reading about old suspension modifications before the days of drop spindles and air bag kits.But I seen this and was stumped.
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Old 06-07-2019, 07:38 PM   #12
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Re: What is a screw jack suspension?

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Originally Posted by 69gmcc10 View Post
This is a kind of screw jack or weight jack. You will see in the picture the cup the spring sets in and an all thread bolt sticking out the top that can be twisted to raise and lower the height of the truck. But more importantly it can also "corner balance" the truck for desired weight distribution.
Do you have a link to this build thread?
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Old 06-07-2019, 07:58 PM   #13
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Re: What is a screw jack suspension?

Quote:
Originally Posted by richards72chevy View Post
Do you have a link to this build thread?
http://67-72chevytrucks.com/vboard/s...d.php?t=432436
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