Pneumatic Air Bag Jack - 11000lbs Capacity - Super Quick & Sketchy
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- Опубліковано 13 вер 2022
- Look At This Pneumatic Air Bag Jack! - www.amazon.com/dp/B08N6FW87W?...
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Air Bag Jacks are a unique design that uses compressed air to raise and lower motor vehicles quickly and easily. They have been around for a long time and if made with quality parts, they can be pretty safe. Their speed makes air jacks the ideal choice for under-body servicing, wheel alignment, tire replacement services, and body repair work if used with jack stands.
All of the other models of these we have seen use two push-button valves make the air jacks quick and easy to operate. This model we purchased uses two 1/4 turn ball valves to do the raising and lowering. Their speed of operation over conventional jacks will significantly reduce the time required to lift a vehicle. Also, this model has a handle that moves, so the tubing used to inflate the air bag might get worn over time and fail.
Inside the air jack, there is a unique internal telescopic stabilizing column. This column provides stability to the jack during elevation but still allows some lateral movement, which enables the head cap of the jack to follow the arc of the vehicle being elevated. This feature combined with a wide base gives maximum stability on hard or soft surfaces. When these internal structures do not have a lot of quality built into them, they become less and less safe!
There are few instructions with this jack, but the working pressure for the air jacks is 100 psi. The safety valve is supposed to prevent the air jack from being accidentally overloaded or over inflated. Will the quality of the safety valve insure that will happen over the long run?
There are very few moving parts in this air bag jack. Maintenance costs associated with the air jacks are minimal, but keeping an eye on the tubing and wear points is essential. The air springs are made of a neoprene rubber that is oil and ozone resistant
Once in a lifted position, the air line can be disconnected and the jack will continue to do its job, but you should never rely on this jack alone to hold up anything you are under!
If you choose to use these, BE SAFE! - Навчання та стиль
This guys ancestors were the same ones that said "I aint riding no horseless carriage."
Well, yes. When you exceed the capacity of the jack, the safety valve opens. Isn't that the reason they put a safety valve on it?
For certain applications, I think they would be fine. That said, jack stands would be a absolute must.... But that should be said for hydraulic jacks too.
Wouldn't anyone in their right mind set up a pair of jack stands after raising their vehicle? Air jack or hydraulic???
Right, this guy is a dummy
Agree, he goes on quite a bit about that, but it is true for any portable lifting equipment IMO.
Exactly
It’s not aquarium hose. It’s flimsy but not aquarium air hose.
Agree it’s a jack not 2 in 1 jack and jack stand
It does not ever matter what type of jack you are using, Jack stands are a must for safety. You don’t ever leave trust to a hydraulic Jack without jackstands because when the o-rings blow out and the fluid leaks, it drops…no different to this air jack.
I ordered a vevor model 11,000 pound model. For one I would never get under a car without safty jack stands in place. Rule number 1. Lift it and drop it on stands case closed
Come on man, I don’t think they intended this jack for commercial use on lifting a semi truck
Its advertised to lift 11000 lbs. Dont know how much that truck weighs.
I Have Two Of These 2 Bladder Made In USA, And 3 Bladder Made In Italy. And I Have Been Using Them For Over 5 Years. They Are Expensive $500-$600. And The Build Quality is 10 times Better Than The One You Showing. I Guess You Get What You Pay For.!
I was using air bags back in the 80s that took off trucks. Never had one blow up. I only used them for tire changes. I didn’t have a fancy frame just a hose. ALWAYS USE JACKSTANDS AND A WHEEL OR A BLOCK FOR INSURANCE.
I love videos that are honest and not sponsored. Thank you!
Times Ten!
U addressed all my questions and concerns on this .. great info thanks..
These are extremely useful if yoy know when and how to use them.
No one works under their vehicle without jack stands, hydraulic jacks are no safer. If you work under a vehicle use jack stands or ramps.
Who in their right mind gets under a vehicle without jack stands in place. Air or hydraulic jack is meant to raise vehicle and then stands put under it and lowered on then.
Thank you for the review I was so tempted in buying it glad you did the review.
Glad I could help!
Yup same here
it's not a review, it's all about feelings from someone who doesn't comprehend any physics behind the scene (the "aquarium tube" make me laugh so hard, this guy never saw an industrial pneumatic tube nor an aquarium one 😂). An hydraulic jack security is in a 1/16" rubber o'ring hand.. but you all trust it more than this 1/4 inch thick balloon.... just think about how does this sound weird. And if you put yourself under something just held by an hydraulic jack, you're already screwed
”aquarium” hose isn’t necessary an accurate description. Industrial air hose like that can safely hold 250 PSI if it is of the appropriate type, which I assume they would have used. It is used as air supplying pressure to all sorts of industrial equipment including lifting devices.
I have the same hose in an aquarium at a business. No joke. Same part numbers and all
Lmao
@@WorkshopAddict I worked for years in industrial pneumatics, as well as various factory and vehicle maintenance fields. Without seeing it in person, I can't make any claims one way or another about this specific product, but polyurethane pneumatic tubing can look similar to cheap tubing used for other applications. It could also be possible that your aquarium tubing is just overkill. It should hold up just fine for any pressures you would use with a compressor in your garage, but you are correct about being concerned about leaking at the bending joint. Simply anchoring the tubing at each side of the joint with slack in the middle would prevent chafing, and this manufacturer should've done that. I would also use a sheath or loom around in for extra safety.
The airbag is a legitimate design (again, can't vouch for this specific product), but it should have a kevlar or similar reinforcement fiber in the rubber to prevent catastrophic explosions. Similar products are used as shocks in semi truck trailers, and for repeated heavy lifting in assembly lines, so I wouldn't necessarily be concerned about the durability. I've welded under trailers, used torches, and angle grinders right next to them, so you should be okay as long as you're smart about it, and don't throw sparks/slag right at it.
Stability does seem a little bit concerning here though. I would definitely not trust this without Jack stands. That single bolt at the top you pointed out is also a little sketchy.
@@GeoffCostanza that would be something that would be very sensible, maybe someone could confirm the reinforced construction for the benefit of the collective.
Maybe someone who bought it and has no further plans to use it due to worries about it blowing out unexpectedly could cross section the air bladder to see if it has internal reinforcement much like the belts in tire treads. That would be a worthy UA-cam video and make use of an otherwise discarded item.
You got some heavy-duty aquarium 😂😂
I poured a bunch of air tool oil in the hose. Works way smoother.
Thanks for the heads up
Even floor trolley jacks move while lifting and if I'm under anything then the jack is out of the way because its on jack stands and not moving.
I'm 30 secs in and I see a glaring issue - you installed the tube wrong from the bag to the handle. It not supposed to go in through the bottom of the handle - it's very obviously supposed to go into the oval cutout hole just up from the bottom, just like it comes out that other one near the top. With it routed under the very bottom, any time the handle is in the vertical position, it'll be resting on the tube and damaging it. Why didn't you notice that when assembling it? I put mine together last night, and immediately noticed after I installed it wrong like you have yours - I didn't even snug up the through bolt before I fixed it - it should be very obvious, though I will admit their instructions are awful and very lacking.
Common sense though - that line has to hold the pressure to lift whatever weight the jack is being tasked with - so help it do that safely and get solid support under whatever you want to work on before crawling under it. I've had regular hydraulic jacks fail and drop a vehicle, so support is always required, and a floppy pneumatic jack like this is a great demonstration of that. But used correctly, it's going to be a great time saver for certain things - just like any tool, if used correctly it'll be great - if misused it'll suck or hurt someone. :/
I have 5 off these Jack's 2 floor and 3 with handles
I use them every day in my body shop
If you know how to use them properly and where to jack up safely, then you're set
P.s. I use wood blocks because your pads are crap "
I might change them up for some cut tire blocks
The video was a game changer for me about the safety aspect - Thanks
safety aspect are the same with an hydraulic jack. This bag can't blew up for no reason, it's made to hold at the very least twice the release pressure of the safety valve (surely way more than twice). If you trust your tires to not blow up for any reason, you can trust this jack, same physics behind. (and actually, you trust a 1/16" thick rubber o'ring with an hydraulic jack, all the pressure is maintained by this creepy little thing in it, think about it)
I only want one just to lift my truck so I can put the Jack stands in place.
Considered one,you saved me some money.
When I was a tire tech some 25 years ago, we had an air bag jack like that but it wasn't as tall and it didn't have the extension handle. You would position it under the pinch weld and press a button to inflate the bladder. I don't remember how we deflated it. It was cool because it was fast. I don't remember being particularly scared of it. We didn't use it a lot though. We also had and alignment rack lift with large air bladders like that.
The older ones were made by a USA company with a patent. They did not have sketchy hoses and the telescoping section in the center was very secure. This is not that. Lol
@@WorkshopAddict made in the USA means junk, where have you been?
@@MrWallStreet119 Bootlicking just like all the other idiots who worship "USA" made CRAP. Just cause its made here doesn't mean it's good. Sadly, in the last 10 years it's probably WORSE.
Hello again WorkshopAddict
Thank you for another Great Video 👍 And thank you for the Safety Talk today. I agree with you I'll pass on this piece of junk!!!! Again thank you 😊
These have a use case, I have a garage with no space on each side of the car, this jack is good for getting the vehicle up to put stands under, and nothing more.
I don't see a safety problem with it. My car rides on bags that are cheaper and paper thin, and get wayyyy more abuse.
The tubing is fine, small tubing can withstand substantially higher pressures than large diameter tubing.
No matter what you use, you should always support the vehicle with a proper jack. A hydraulic, pneumatic jack can fail on you when you least expect it!
It is the sway you get. Imagine no control arms snd just bags on your car.
Ya, all of the air bag setups I've seen in my life time, have used this small tubing out to the air bags. they are actually rated for about 10 times the pressure you will ever put into the bags.
Even hydraulic jacks move..Every time I lift my truck I have to be careful the jack doesn’t roll from under the truck.
@@WorkshopAddictI’m still not worried about that though. Ignoring the risk of the airbag blowing and the pieces of it hitting you (real issue, and likely the reason I would avoid this), if I’m in the process of lifting the vehicle and it fails, well, it falls back on its wheel(s) and tire(s). While inconvenient, it’s not a safety issue. If the wheel and tire is off, it should be on a jack stand already. I am NEVER getting under a vehicle that’s not properly supported, so again, if it falls, it isn’t a safety hazard per se. The only real issue I see is if you lift one side, stick it on stands, then go to the other and because it lifts so fast you don’t notice the first stand is tipping or something.
The only way this becomes a real hazard is if you follow improper jacking procedures. Any time I pull out a jack I’m also pulling out stands, and in most cases when I get under the car, the jack is lowered and out of the way. Am I missing something?
@@bigjaydogg3384 cause common sense isn't always that common.
In the late 70s the vocational school I attended, we spent 2 days on Jacking up trucks. Over kill works! Thanks
Put a pressure gauge in place of the diffuser on the release valve and see what pressure is actually being applied to the air bladder. What pressure did the blow off valve release?
On my 3 ton unit with passenger cars, the pressure was only about 35 psi from my measurements. I don't have anything heavy enough to test the load limits, maybe I could use a 12 ton hydraulic press to hold it.
I've been trying to see if there were any reports of the air bladder actually failing, and thought this might have been one, but the blow off valve releasing is still kind of an expected event, unless the pressure released at some very low value.
That's why I wonder what pressure it actually released at. Certainly the blow off letting go is preferable to the air bladder popping, because that'd sting the eardrums-😅
Just wondering what the air compressor cfm to operate this to work? Thanks for the
Safety advice also .Thanks
These work just fine, nothing sketchy. Use jack stands and be smart like any other jack. They are light weight and work well. I do find it strange that you post a link to buy (and receive profits from) a product you claim to be sketchy and potentially unsafe.
🤣-the first minute-ish!
“When that goes off that’ll scare ya” haha. “Gloves are nice”
In all seriousness be safe out there everyone. Great info Brian!
I have one works great!
Just bought one. Works great. I always use Jack-stands and a tire under the frame for safety.
We use airbags to lift buses to change tires
1/4 airline instead of aquarium line and 140psi safety valve and it lifts 15k ,we run these airbags on semi trucks pulling 80 k lbs or more they last for 500k than they start to leaking from the bottom but rearly they blow
Yea, I think this guy was being super super critical of these air bags. Hydraulic jacks are
Know to kill people when they go out. I had one literally just release all pressure one day. Anyways I like how quick these things lift. I would consider getting 2 for my tractor. And always use jack stands with either hydraulic or pneumatic jacks. Stay safe people.
I want to know if anyone ever had one actually suffer a blowout rather than a slow leak. I'm surprised that not one account of that happening ever surfaced.
Then again, maybe it did and the guy never had the chance to tell the story..
Do you think its good enough for a side by side?
Will a regular car tire inflator work work for that car Jack review throw another video
Saw this thing on a FB ad; I am always skeptical of things like this and glad I came across your vid review on this product. You reinforced what I and many others have thought to that this thing is unsafe for most vehicle repair use, I will stick with my tried and true hydraulic 3 ton jack and jack stands. Again great review video, you have probably saved a lot of DIY mechs like myself money and possible injuries :-)
it's not a critical review, it's all about feelings. If you trust a 1/16" thick o'ring (which is the thing holding all the pressure in an hydraulic jack) you can easily trust this pneumatic jack too. Science is not about feelings, is about calculation and applied laws of physics, and this thing is safe as an hydraulic jack is. Did you put yourself under a vehicle without jack stand ? I will never do that personally, even if a god hold the car up.
I was concerned about the safety factor of the air bags blowing up as well. Parts I would reinforce/replace would be a heavier duty air tube, and replacing the rubber circular center with a steel plate, that you could countersink a bolt in to. And as far as the green/red handle ball valve actuators go, I believe that having the handles fold in (while being hard to manipulate) is actually a safety feature to keep people (that may be walking around) from accidentally engaging the controls.
Not trying to be rude, idk about other brands bur snap on uses the same bags at tractor trailers do. Some of those bags last 300,000 miles before needing to be replaced
Agreed on your opinion.
The fabric they use around hydraulic lines would work for air bag .and put a bucket over it when in storage
The Yeager Air Jack sold at the Yeager site however is a scam, they do not deliver it and con you into being patient till the 60 day point passes then the bank card company can not recover the money you paid. So, The point here is not the jack reviewed in the video here. But I post this for those shopping online and hope they do not fall prey to the Yeager site Air Jack deal.
hi
Please can you make a video review about
MILWAUKEE M18 FUEL SDS-MAX ROTARY HAMMER 1-3/4″ 2718-21HD vs DeWalt DCH614
I see no video about those in UA-cam
Thanks
18 months later - are you still using this? Do you reach for it more or less than your other jacks? What were the modifications you indicated you'd make and can you demonstrate their utility? What does the inside look like? Thanks for the review, I'm curious how it's holding up over time for you.
The main clear air line cracked and started leaking after about 5 uses. It was more of a pain to drag out an air hose than to use a regular jack and I did not trust the Chinese design. The USA made model would have given me some confidence in it. I don't use it and I never fixed it.
I want 2 see the video of u taking apart and the handle is on the wrong side as all these jacks
You pushed me off the fence. It's a no go for me. Thank you.
Yeah same here
These are no worse than a floor jack, I use these constantly for tire switchovers. My drive is on a bit of a slope and I have never had an issue with the vehicle coming off the jack. I actually have 3 - 3-ton models and one 5-ton model. I also do a lot of brake jobs and I can lift both wheels off the ground without an issue. I have had these for 2 years now and my floor jacks have not moved since.
I don't understand why you are claiming that its sketchy and you wouldn't want to trust it to allow you to get under the vehicle. Are there any floor jacks you "trust" to hold the vehicle while you go under it? I use floor jacks regularly to get a vehicle onto jack stands. That is all they are intended for. By your logic all floor jacks are sketchy. Which they are. Hydraulic, pneumatic, or gear driven, none of them are intended to hold the vehicle so that you can safely work under it. That is why we have jack stands.
Some users benefit from a larger safety margin to cover times where proper procedure isn't always followed-
They have these on theme park rides moving doors and other actuators. I think they suck the air out too
Air bags are used on jet airliners. They are also used on semi trucks. Both tractor and trailer. Tri axle trucks too. They're mainstream equipment and are safe. Just buy something built better than a Harbor Freight air bag jack and you're good.
Hey what kind of air compressor do you need to run this effectively?
At least a 10 gallon with a good pump. It uses a decent amount of air compared to a normal truck air bag.
@@WorkshopAddict Thank you. Thinking of getting this for some jobs here and there at home, and throwing jack stands under the car as quick as humanly possible 😂 the convenience is just too tempting
Great review! Thank you.
Those levers are turned in for shipping so they don't get broken, that's my guess anyhow.
I do not disagree, but if you are working around the handle at all and you have them facing outward, you could easily hit and move either lever. Could be bad if that happened.
I’m going to say this review is bias and completely geared towards the product failing . For beginners you don’t use a 3ton Jack to lift a 3 ton car . So why use an 11000 lb Jack to lift 11k + semi . Of course it’s going to fail and I’m also pretty sure this jack isn’t made for lifting semis . I have the same jack and I use it on my 19 Durango and i have never had a problem out of it .
First, we never set it up to fail. We tried it on the semi and it worked and the pressure relief valve opened as it should, protecting us. It did bend when used to full capacity. You can make your own decisions as to what to use based off the video, but we worked to make it very clear as to what people are getting.
@@WorkshopAddict
If you get a chance, can you put a pressure gauge on the release valve port and see what pressure the pop off valve releases at?
Great review. I'll stick to my double pump hydraulic jack. Thanks.
with its 1/16" o'ring holding all the pressure.. it's not a great review at all. It's all about feelings, not laws of pneumatics and pressure..
By the time I take that out and turn on the compressor I could just stick a floor jack under and be halfway done with the job
Thank you for your advice 🙏 👍💪
if the airbag is a DOT rated bag then they are very safe themselves, very rare to blow a bag properly used/installed.
Lol. These are not DOT airbags.
Does DOT rate things like this? How would it fall under their domain?
Never get under a unsupported load. These are only good for tire changes.
It’s a jack not a jack stand
Modify it make it better maybe some cloth wrapped 4 chains.and better high temp bolts
Thanks for confirming my suspicions.
he didn't confirm anything. He makes assumptions over his feelings and the lack of pneumatic knowledge he have...
I'm going to say this. I drive cmv's 4 a living. They have 5 axles x 2 air bag suspension that can LEGALLY support 80 000 lbs of load. More if you would purchase overweight permits right. According to how the airbags were fabricated. I would trust them to not blow up. But hell yeah i would use jack stands
Are those "bags" the same as the ones seen on heavy duty air bag suspension for large trucks? If so, I would have no issue with their durability. Those things last for years while being punished daily.
Semi front axle is 12,000 lbs. Your jack is rated for 11,000 lbs. Unfair test.
The jack did what it was supposed to. It lifted what it could and the relieve valve opened. Perfect test to know it works safely.
This thing makes my butt pucker just looking at it...
Yeah, I'd be afraid to max out an 11,000 lb airbag jack to lift a 25,000 lb semi. Those safety pressure valves sure do scare the shit out of ya. I had a defective one rated at 225psi pop at 190 while my compressor was filling the tank to 200psi.
Even collapsed it's too thick to go under a low profile vehicle like a Camaro, Pontiac G6, or my Lincoln MKZ
Jack In The Box. What an epic line. LOL 😃👍
Fk that thing. Sketch is an understatement. Might as well roll with a air/hydraulic floor jack if the surface is concrete.
Dude is jack is NOT meant for Semi.
That's a ridiculous and hazardous piece of equipment in my opinion. Thanks for the review!
It is fun to see what it can do!
Air compressors are extremely dangerous and we all know there is a million of those in everyone’s garages. I heard that a man was putting air in the tires of a hand truck/dolly. He over inflated a tire and it exploded. His hand was by the valve and the explosion turned his hand into ground beef. Just have to be careful and use wisdom.
@@paedahe4975 it does take some more understanding of the way things work to enable it to be used safely. By its design, it does have a higher likelihood of a fast drop than the more common hydraulic jack, but it's a trade-off for quick and easy operation.
If you work under the guideline of assuming it can fail spontaneously at any time, it's fine to use.
Use proper jack stands for support before sticking your head and appendages under the car, same as with any lifting equipment.
@@sadfur8728 I agree. Well put.
@@sadfur8728 the reviewer didn't even mention to use safety common sense, I understand not everyone has it, but he has to mention that. Always use jacks when working under a vehicle, why just rely on jacks alone, hydraulic or pneumatic. His review is good but the message is wrong. Nothing is safe in this world, you always have to be thinking safety first.
China!!!!
I would not trust this.
But you should put jack stands under the cars. In case this does break.
You should do that regardless
I've been looking at these on-line for a long time now. The principle of an AIR JACK is good, but the reality and mechanics of it concerned me too. It's why I have not ordered nor bought one.
This video has convinced me to stay away from these for the very reasons that are brought forward here.
If this was built by a 'real' automotive equipment supplier brand name that is trustworthy, then may, just maybe, I'd have faith in it. However with that brand name on it, which seems to be on
almost everything these days from bottle brushes to....... air jacks, h'mmm no, I'll do without this one, thanks in no small part to the folks at WorkshopAddict and this video.
Two post lifts are not that stable either and can certainly can move around.
No doubt someone is going to connect one of these to a cordless compressor. I'll stick with my floor jacks.
You may not know this but when you jack something up no matter what Jack you use you don't trust the jack ever you jack it up you put jack stands under it and you pull the jack away so you act like you jack it up and keep the jack of there that's not right
I just want this to lift light duty vehicles at work and throw a jack stand under it
Tell us you don't use jacks safely without telling us you don't use jacks safely.
Jack stands always hold the weight not the jack. Jack should be left closeby for rescuers.
Negative negative now how about the good stuff. Proper usage gives anyone with bad shoulders or muscle problems the ease of not having to use a pump Jack as far as the height issue run the vehicle up on 2x6x10” pieces of wood to give more height clearance very simple most cars now have to do this just to clear ramps. As a retired truck driver air bags are just as safe as using a Jack all that can crack your scull when not used properly. Four air bags on a truck can raise 50,000 pounds with ease so why all the negatives. When you use a pump Jack you are to use stands then lower onto the stands so what’s the difference. Common sense prevails why would you not use a 4x4 piece of wood on top of that air Jack like any other Jack to close up the air gap and give more working pressure in the bag to lift. Common sense prevails but overall not a bad video if you only want to explore only the negatives. I just ordered my 6000 pound air Jack 7 to 10 years down the road when it gets weather cracks in the bag then you think about replacing it.
That'll be a hard no for me. The fact that they couldn't even spend 4 dollars on a crimped and braided hose for something designed for lifting... LIFTING? Just no. Sure yeah, you should be using jack stands, but if you want to support a vehicle from say the rear diff, you still kinda need to get (at least partially) under it. And we all know a guy who would trust that airbag alone to hold up the front end of a truck for the duration of an engine swap.
You complain too much. The bag is rated for 145psi & so are most compressors. You could have played with a pressure-regulator a bit more to fine tune your complaint.
I knew it looked to good to be true. 😢
Thanks, but for the PRICE and if you have common sense, it is flipping great!
Thing looks super sketch. We use them at the dealership to mount the pinch welds on the frame Machine. That’s only like a second to lift then put the clamps that old the car on the pinch welds. I wouldn’t want to work under one for any period of time
Well why wouldn’t you use jack stands regardless of lift method.
@@cadestekly6410 it's just human nature to be optimistic and take short cuts sometimes. Who follows the rules all the time 😉
What a joke. It’s a jack. Jack something up put stands under it like you should and jack and let it down outta the way. Agree it won’t lift 11000lbs but easily lifts my 1/2 ton truck. If you would jack it all the way up the sleeves in the center will stabilize it. Absolutely love mine. Very dramatic review
never work under a vehicle without jack stands. ever.
thats what jack stands are for!! i have three of the same units and i love them!! your review is sketchy so what ya selling thats better?
That thing looks sketch, unless you put a jack stand right after
Which is what you should do with anything.
Dont need to watch the whole thinf to know that ill pass on these
LOL you lifted the vehicle up but the worst point possible, at the business end of a suspension arm. No wonder it was wobbly, it would be wobbly jacking it up from that point with any jack! All while you have a perfectly rigid receiver hitch you could try, and you didn't even try jacking it up there. You are not supposed to jack vehicles by their suspension components!
sure you can, any type jack will lift on anypoint, you can lift on leaf springs, control arm ends, balljoint location, axles, many times the suspension parts are stronger than any body parts. most vehicles don't have receiver hitches, let alone solid bumpers anymore.
Obviously it's meant to raise a car up on jackstands real quick and not as a regular jack anyone in a real shop knows this🙄
I would never go under anything with just the jack holding it up that’s just foolishness.
Is that made in China? I wonder if it's designed to fail on purpose, just wondering
Cancelling my order , thanks
Junk, Thank you for review.
The fact that you said "you also have to use jack stands" means A, you work under cars without jacks or B, you made a video to hear yourself flap. Don't take this guys advice on anything other than how to make a youtube video about stuff you know nothing about.
I would have to agree with every concern you had. This product reminds me of a high school shop project that was never finished out because the end of the school year came about. It is frustrating as hell putting it together because the instructions are worthless and you have to take it apart multiple times to get it to work correctly. It is more a novelty item that a real shop tool. I ended sending mine back for a refund after of month of jacking around with it. It is a "cool tool" but that is not enough. It has to be safe and functional as well, which it is not. My suggestion would be to pass on this one.
It looks like some junk and even Harbor Freight is not going to mess with.