Under Lift Safety Stands
- Thread starter 67Camaro
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glentre
Well-known member
What kind of lift do you have. Pics if possible
Glen
Glen
Super Mech
Well-known member
Following this.
sz0k30
Well-known member
The kind shown in about the middle of attached photo. I have 2. They have the weight capacity and approx 2 feet of adjustability. DO NOT get the kind where the base is a tripod. Very limited adjustability in 6" increments.
P.S. the one shown has a foot lever that is supposed to give you an extra 2" if you need it. I never have & to me its just a waste and in the way. I wound up just tie wrapping it to the post.
P.S. the one shown has a foot lever that is supposed to give you an extra 2" if you need it. I never have & to me its just a waste and in the way. I wound up just tie wrapping it to the post.
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Super Mech
Well-known member
I have those pole type stands. I myself are searching for the same or a tripod type with a screw adjustment but would like them a little shorter than a standard pole jack.
Buckgnarly
Well-known member
Have 4 at my home shop and at my school shop. They often go on sale for 120.
https://m.northerntool.com/shop/too...gVI0NU1XbYr5vF4gTCBoC-b4QAvD_BwE&gclsrc=aw.ds
https://m.northerntool.com/shop/too...gVI0NU1XbYr5vF4gTCBoC-b4QAvD_BwE&gclsrc=aw.ds
sweetk30
Well-known member
Make sure to make a hanging note to place on the lower valve to warn operators of the stand under the vehicle so you dont endo a vehicle off the lift .
finn
Well-known member
I have both OTC tripod stand and the single post type. The Tripp’s is much more stable than the single post, and will probably support the truck on the lift.
The single post....not so much. It does stabilize things, but if there was some sort of accident, I don’t trust it to save me from injury, or worse.
The OTC tripod has a pinned center post and a screw adjuster with bearings, and a nice rubber pad on top. I think it is sold under other names, at a lower price.
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like2wheel
Well-known member
Do any of the single post type stands have the keyway in the shaft to keep them from spinning in the tube?
So you can crank them up with one hand without holding the yoke
So you can crank them up with one hand without holding the yoke
ScaldedDog
Well-known member
I've had a set of HF triangle ones for a dozen years. No issues. The handles are occasionally in the way.
I'd suggest getting at least 3. One for each end of the vehicle, and one to hold up whatever you are working on
Mark
Sent from my SM-G986U using Tapatalk
I'd suggest getting at least 3. One for each end of the vehicle, and one to hold up whatever you are working on
Mark
Sent from my SM-G986U using Tapatalk
longez
Well-known member
I use two of these with my Rotary SPOA10; Safeway brand rated at 2,000# They'll go from about 4' to 7'
I've got two OTC and two ATD single posts...I cut them both down (the ATD's I had to weld back together, the OTC's the collars come out) to fit under my mid rise scissor. They're not there to hold the weight of the vehicle, just to stabilize it and they do a damn good job at that.
The other use they often see is holding up axles, drive shafts, exhausts, etc. very handy to have an extra hand or two without wearing out your arms.
The other use they often see is holding up axles, drive shafts, exhausts, etc. very handy to have an extra hand or two without wearing out your arms.
CraigStu
Well-known member
I know jacks have uses because I have used them many times. But they are also dangerous. Have you seen pics of a car falling off a lift when it it is lowered and someone forgot to remove the stand? I saw it in real life 40 yrs ago from across the shop. The tech in the next bay had gone from leaning into the side of the engine compartment of the car on the floor to his tool box so he wasn't crushed. Had he had the correct wrench size w/ him....More recently (maybe 10 yrs ago) I have seen 2 instances where a tech suddenly realized that the car was only touching 3 of the lift pads while there was 3 inches of clearance to the 4th pad. Neither of those fell TG, but the tech took a 15 min coffee break so his hands would stop shaking. I know that because one of the two was me. You have a lift that can lift 10,000# so no need for anything else. An idea to make you more comfortable. Get the car up so the tires are 6-8 inches off the floor. Go to whichever end is easiest and push/pull it up and down. Get it rocking as much as you can. If nothing bad happens you are good to go.
sz0k30
Well-known member
I do that every time.
toddmorr
Well-known member
yep, standard practice. Makes more sense to me than introducing more equipment, which brings its own set of risks.
jawnd393
Well-known member
The harbor Freight under hoist safety stand are rated 2 tons. I can't find anything in print, for these of any similar stands from other brands, that say if that's 2 tons for a pair or each. A guy on the HF customer service phone line spent some time looking and said the rating is for a pair.
I'm working on a Chevy trailblazer on a 4 post lift. It is difficult to find places to safely lift the wheels off the ramps. Most of the frame is over too close to the edge of the ramps to use any jack or stand on the ramps. I'm trying to adjust alignment so I can't lift under the control arms, they have to be free to move when adjustments are made. There are no places where small contact point for bottle jacks, doesn't look like it could slip off. A piece of wood between the bottle jack and the frame is easily crushed by that small contact point. I can put a small trolly jack on the jack tray, but that doesn't leave space for jack stands. To leave the lower control arms free, the only place for jack stands is also on the jack tray. I can use 2 screw type 2 ton scissors jacks on the jack tray and get 2 jack stands. It still doesn't feel safe. The scissors jacks are a lot of work.
As I write this, I ask myself why do I think I need to lift the whole front end to make adjustments.
To replace front suspension parts I lifted one side at a time and it was supported be a jack stand on the jack tray, the tall safety stand from the floor, and the jack that lifted it, and I really wasn't under it when the tire & wheel was off. I like 3 supports if I'm gonna get under something. Most of the part changing work was not from under it.
I think the front curb weight of the Trailblazer is about 2600 lbs. That's the weight under the tires. A convenient frame contact point for the safety stand is further back and would pick up a higher share of the curb weight.
SO, the question is: Can 2 HF safety stands support the whole front end of my Trailblazer? If I can remove the jack I can also put 2 jack stands on the jack tray.
What do you think of lowering the lift a little with the safety stands under the front? I don't think I want to try it.
All this because I don't have any faith that an alignment shop will actually do the work.
On the trailblazer, camber and caster is set by loosening 3 big bolts and pushing the lower control arm bracket around with a crowbar. It's a tedious process.
I'm working on a Chevy trailblazer on a 4 post lift. It is difficult to find places to safely lift the wheels off the ramps. Most of the frame is over too close to the edge of the ramps to use any jack or stand on the ramps. I'm trying to adjust alignment so I can't lift under the control arms, they have to be free to move when adjustments are made. There are no places where small contact point for bottle jacks, doesn't look like it could slip off. A piece of wood between the bottle jack and the frame is easily crushed by that small contact point. I can put a small trolly jack on the jack tray, but that doesn't leave space for jack stands. To leave the lower control arms free, the only place for jack stands is also on the jack tray. I can use 2 screw type 2 ton scissors jacks on the jack tray and get 2 jack stands. It still doesn't feel safe. The scissors jacks are a lot of work.
As I write this, I ask myself why do I think I need to lift the whole front end to make adjustments.
To replace front suspension parts I lifted one side at a time and it was supported be a jack stand on the jack tray, the tall safety stand from the floor, and the jack that lifted it, and I really wasn't under it when the tire & wheel was off. I like 3 supports if I'm gonna get under something. Most of the part changing work was not from under it.
I think the front curb weight of the Trailblazer is about 2600 lbs. That's the weight under the tires. A convenient frame contact point for the safety stand is further back and would pick up a higher share of the curb weight.
SO, the question is: Can 2 HF safety stands support the whole front end of my Trailblazer? If I can remove the jack I can also put 2 jack stands on the jack tray.
What do you think of lowering the lift a little with the safety stands under the front? I don't think I want to try it.
All this because I don't have any faith that an alignment shop will actually do the work.
On the trailblazer, camber and caster is set by loosening 3 big bolts and pushing the lower control arm bracket around with a crowbar. It's a tedious process.
oldmachinenut
Well-known member
I did something similar with 4 Harbor Freight tripod stands for my Sons to use when working under my mid-rise hoist. I started with new unassembled stands cut them down then bolted and welded them together using a jig to keep them straight. I also drilled more pin holes in the tube to allow more adjustability so the can be used as pipe/welding stands. They are all the way down except for the screw when used under the hoist. They are very solid.
rburke65
Well-known member
I have a pair simi to the green ones pictured above.
pattenp
Well-known member
The HF under hoist support stand is not sold in pairs. The support spec is for one stand, which is 2 tons.
GRivera
Well-known member
I have two of the Sunex 6809A stands 3/4 ton capacity each. Currently they cost $101
Sunex 6809A, Underhoist Support Stand, ¾ Ton Capacity, 12 Inch Diameter Base, Contoured Saddle, Bearing Mounted Spin Handle, Self-Locking ACME Threaded Screw, Supports Vehicle Components - Power Drill Accessories - Amazon.com
Sunex 6809A, Underhoist Support Stand, ¾ Ton Capacity, 12 Inch Diameter Base, Contoured Saddle, Bearing Mounted Spin Handle, Self-Locking ACME Threaded Screw, Supports Vehicle Components - Power Drill Accessories - Amazon.com
www.amazon.com
JRC3
Well-known member
Never understood the feeling of safety with only two safety stands like one at the front and one at the back of a vehicle. Will a two legged table stand without falling over???
With my midlift I put 4 stands under the lift arms or different lift points on the vehicle and then release most of the weight on to them. Depending on what I'm doing sometimes rest the vehicle 100% on the stands and lower the lift out of the way.
But like I said, will a 2-legged table stand or fall?
With my midlift I put 4 stands under the lift arms or different lift points on the vehicle and then release most of the weight on to them. Depending on what I'm doing sometimes rest the vehicle 100% on the stands and lower the lift out of the way.
But like I said, will a 2-legged table stand or fall?
jawnd393
Well-known member
Interestingly, buried inside the pdf manual of one of the similar, competing brand, 2 ton, under lift, safety stands, on the Technical Specification page is "Maximum Capacity 1500 lbs. There are also statements like "Not for use for stabilizing or supporting vehicles.
Unless it is specifically stated, I don't think we can assume any of these 2 ton tripod safety stands are anything but one ton each.
Unless it is specifically stated, I don't think we can assume any of these 2 ton tripod safety stands are anything but one ton each.
steaks&anvils
Well-known member
deleted, wrong thread, too many windows open at one time!
JRC3
Well-known member
It's a shame Sunex doesn't make a set of these in a taller size. Because these things rock...In a good way. https://www.garagejournal.com/forum/threads/29-47-jack-stands-for-mid-rise-lift.397383/#post-7355474