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04-29-2018, 08:11 PM | #1 |
Senior Member
Join Date: Nov 2010
Location: Indiana
Posts: 251
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Shaky Two Post lift
I have a almost new 2 post car lift. With 10 inch vertical extensions on the arms, I can find the frame in four places(non symmetric) and lift the vehicle. But... the car is shaky on the lift and I am not comfortable doing real work under it.
I am wondering if anyone has experienced the same problem and have found a solution. I am ready to modify the lift as necessary but not sure what will work. Thanks in advance for any thoughts, pictures, etc... |
04-29-2018, 08:34 PM | #2 |
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Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,779
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Re: Shaky Two Post lift
What is the brand, and the load capacity? Is the shakiness in the extensions? The arms? The posts? Or in the floor anchors?
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04-30-2018, 02:59 AM | #3 |
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Join Date: Jan 2016
Posts: 2,096
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Re: Shaky Two Post lift
On my Atlas 2 post if I wiggle the car it will shake on the arms.
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04-30-2018, 06:35 AM | #4 |
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Join Date: Oct 2015
Location: Canada
Posts: 414
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Re: Shaky Two Post lift
You could try one or two of these, I use one under the hitch of my 3/4 ton long box when working on it to take the wiggle out of it, it sure stabilizes things
https://www.princessauto.com/en/deta....pal-prod-com2 |
04-30-2018, 07:21 AM | #5 |
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Join Date: Sep 2016
Location: Rising Sun, MD
Posts: 69
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Re: Shaky Two Post lift
I find the model a frame flexes quite a bit on my two post....that's probably what you're experiencing. Same issue with other vehicles?
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04-30-2018, 07:54 AM | #6 |
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Location: Sacramento
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Re: Shaky Two Post lift
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04-30-2018, 07:55 AM | #7 |
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Join Date: May 2010
Location: Grafton,OHIO
Posts: 727
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Re: Shaky Two Post lift
I have one of those tripods. Got mine at harbor freight and it is heavy and well built Works like a charm. RAy
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04-30-2018, 04:59 PM | #8 |
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Join Date: Dec 2014
Location: Hillsboro IL
Posts: 479
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Re: Shaky Two Post lift
Somebody has posted pictures of a short runway connecting the arms together making the two post lift a drive on lift. I don't remember if the runways ran across or front to back. Somebody has to have pictures. Art
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04-30-2018, 07:41 PM | #9 |
Senior Member
Join Date: Nov 2010
Location: Indiana
Posts: 251
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Re: Shaky Two Post lift
My 2 post lift is a 9 ton Atlas from Gregg Smith. I would love to build something to use the arms and lift from the front and rear axle. The front and rear arms are different length(not symetrical) making the car lift not centered with the posts. It is a bit forward.
The lift is sound and well anchored. I just don't like that when I push on the car when its in the air it is shaky. Don't have room for 4pt lift and ramps. Don't like flexing the frame and the body. |
04-30-2018, 08:04 PM | #10 |
Senior Member
Join Date: Dec 2014
Location: Hillsboro IL
Posts: 479
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Re: Shaky Two Post lift
I did a search of this forum and found these.
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05-01-2018, 08:17 AM | #11 |
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Join Date: May 2010
Location: Central, IL
Posts: 3,968
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Re: Shaky Two Post lift
Even with ramps or things under the axles its still going to wiggle when you start bouncing it. Its a 2 post lift - only 2 points that are trying to keep the car from rotating. I would just get the heavy duty adjustable tripods as posted above one at each end and snug them. Should be stable as a rock as it now has 4 points of ground contact.
Just to make sure you are using the lift correctly: Raise vehicle up letting the safety locks clank into place, then lower the car onto the safety locks so its not going anywhere right?
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05-01-2018, 08:37 AM | #12 |
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Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,043
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Re: Shaky Two Post lift
This was on the forum a while ago:
Long rails and short interior cross bars are 2" OD, 3/16" wall, DOM. Exterior cross bars are 1 1/2" x 3" rectangle tubing. 1 1/2" x 1 1/2" angle caps the ends at the bottom for addition strength. Each sections weighs about 75+ pounds. Probably some overkill designed in to it.
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05-01-2018, 08:52 AM | #13 |
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Join Date: Apr 2017
Location: Sacramento
Posts: 1,262
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Re: Shaky Two Post lift
Lifts are handy for routine maintenance,but most heavy work is done easier on the ground,or a four post drive on..
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