HiLift jack replacement - Defender Source
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  #1  
Old July 22nd, 2013, 01:06 AM
cdb
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Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
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HiLift jack replacement

Time for someone to come up with a lightweight, non-dangerous, stable jack to replace this dangerous 100 year old POS design.

Needs to be at 1/2 the weight of the traditional HiLift.
Not twirl and spin when you use it as a winch.
Not give you a concussion if you release the handle when it is horizontal as you are lowering the vehicle.
Have a larger, more stable footprint (not requiring a separate pad).
Maybe, use an electric motor and a cog arrangement.

Anyway, I'm astonished that someone hasn't come up with a better solution.
Fund it with Kickstarter.
Build it with aluminum, titanium, resin.

Please.

I'd buy it and get rid of this piece of crap that I've been dragging around and cursing for over 20 years.

I feel better already.
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  #2  
Old July 22nd, 2013, 02:55 AM
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Chris
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Had one for almost as long. Have I used mine? Never. Have I seen a vehicle fall off one? Yes. But it can be the only jack usable in certain situations.
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  #3  
Old July 22nd, 2013, 06:53 AM
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Not the total solution but there has been a recent design improvement. YouTube hilift jack to find a simple improvement recently where the jack is anchored by two opposing cables which appear to make a huge difference re stability when jacking.

I agree these things scare the shit out if me sometimes. When you do need to use them make sure they arent rusted, wear gloves and take your time.

Clay
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  #4  
Old July 22nd, 2013, 07:13 AM
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Sam
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lol.

I've had your nemesis eat my left leg for breakfast back when I was an impatient teenager. Ate 10"of my shin down to the bone. I dislike em as well.
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  #5  
Old July 22nd, 2013, 07:55 AM
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Dan Prasada-Rao
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I find my hi lift indispensible. I even use it at home on a regular basis. Like any tool you have to know it's limitations and respect the fact that it could knock the crap out of you.
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  #6  
Old July 22nd, 2013, 08:00 AM
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Quote:
Originally Posted by 1of40 View Post
Not the total solution but there has been a recent design improvement. YouTube hilift jack to find a simple improvement recently where the jack is anchored by two opposing cables which appear to make a huge difference re stability when jacking.

I agree these things scare the shit out if me sometimes. When you do need to use them make sure they arent rusted, wear gloves and take your time.

Clay
X2. This was all over ExPo as well. Many were lauding its simplicity and ability to stabilize the jack with ease.
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  #7  
Old July 22nd, 2013, 08:44 AM
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Bill Larson
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Quote:
Originally Posted by rijosho View Post
X2. This was all over ExPo as well. Many were lauding its simplicity and ability to stabilize the jack with ease.
X2...
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  #8  
Old July 22nd, 2013, 10:35 AM
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Quote:
Originally Posted by cdb View Post
Build it with aluminum, titanium, resin.
The hi-lift is a very good tool considering its load-bearing capability, weight (30 lbs) and a price of $80.


Aluminum would is 3x less stiff and much softer than steel, necessitating a complete redesign of the jack itself. The closest anyone has come yet is the radflo hydra-jac (http://www.radflo.com/hydra_jac.htm). However, it is basically a hydraulic bottle jack in a lighter, longer format (13 lbs) It has significantly less jacking range and cannot be used for winching, and also costs 4x as much as a hi-lift.



An alternative would be to use a composite of aluminum and steel, where hardened steel surfaces are used for the load and friction bearing surfaces. The concern there is the stiffness. Accounting for this would increase bulk.


Titanium would be great, but unfortunately, it suffers from similar softness issues. Titanium has about 60% of the stiffness of steel, so would not need to be bulked up nearly as much (it could probably look just like a steel hi-lift). The cost would be astronomical, roughly 30x the cost of an existing hi-lift, or $2400 or so - just for the materials. Additional tooling / machining costs would put the true cost at probably 100x a steel hi-lift.



In either case, load bearing capability of aluminum and titanium would be less than that of steel for a given volume. Neither material would change the winch twirling problem.



Another way to reduce weight would be use engineered steels for the hi-lift. This could perhaps result in a small - 10% or so reduction in weight.


I think the best candidate for reducing the weight of the hi-lift to half its current weight is a higher strength steel and aluminum composite design. However, it would not solve the other problems you mentioned.
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  #9  
Old July 22nd, 2013, 10:49 AM
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https://www.google.com/search?q=exhaust+jack

Quote:
Originally Posted by cdb View Post
Time for someone to come up with a lightweight, non-dangerous, stable jack to replace this dangerous 100 year old POS design.

Needs to be at 1/2 the weight of the traditional HiLift.
Not twirl and spin when you use it as a winch.
Not give you a concussion if you release the handle when it is horizontal as you are lowering the vehicle.
Have a larger, more stable footprint (not requiring a separate pad).
Maybe, use an electric motor and a cog arrangement.

Anyway, I'm astonished that someone hasn't come up with a better solution.
Fund it with Kickstarter.
Build it with aluminum, titanium, resin.

Please.

I'd buy it and get rid of this piece of crap that I've been dragging around and cursing for over 20 years.

I feel better already.
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  #10  
Old July 23rd, 2013, 12:32 AM
cdb
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Clark Bowen
1969 Series 2a/OM617 Bugeye 88"
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These air jacks look like a balloon ready to pop.
What amazes me is that HiLiift has made the same item for over a hundred years and never significantly improved it or alleviated its significant faults.

Hmmmmm, must be British owned. (yes I know it is American).
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  #11  
Old July 23rd, 2013, 04:23 AM
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Tom Rowe
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Quote:
Originally Posted by cdb View Post
Not give you a concussion if you release the handle when it is horizontal as you are lowering the vehicle.
You should never release the handle when it's horizontal. One of the hi-lift basics.
Do you want a redesign of the ax because you hit yourself in the foot with it?
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Tom Rowe
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Four wheel drive allows you to get stuck
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  #12  
Old July 23rd, 2013, 09:19 AM
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Chris Davis
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I changed a blow out with mine a couple weeks ago. I have never had an issue with my hilift. I learned to use it correctly, aware that it has the potential to be dangerous, and it has behaved flawlessly. If there was a better mousetrap, I would get it, but in the meantime, I am still a big fan. That stability brace looks rather nice as an option...
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  #13  
Old July 23rd, 2013, 10:10 AM
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There are folks who rely on a hi-lift to make a living (farmers/ranchers/miners). The majority of these folks would tell you its a dangerous tool no matter how much of a hi-lift expert folks think they are.

Try toting one around for two weeks putting in fence in mountain country...
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  #14  
Old July 23rd, 2013, 10:21 AM
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Raub A.
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I carried one for 20 years (still have it) in the Ag business. There are times when a hi lift is the only thing that will work and that is the only time I use one. I have yet to be hurt by one but I treat them like a live handgerenade - with a lot of respect. I just bought a new 60" Extreme and retired the old one.
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  #15  
Old July 23rd, 2013, 10:24 AM
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Quote:
Originally Posted by SMac View Post
lol.

I've had your nemesis eat my left leg for breakfast back when I was an impatient teenager. Ate 10"of my shin down to the bone.
Ouch. What does that look like?
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  #16  
Old July 23rd, 2013, 10:35 AM
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Tom Rowe
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Quote:
Originally Posted by SMac View Post
There are folks who rely on a hi-lift to make a living (farmers/ranchers/miners). The majority of these folks would tell you its a dangerous tool no matter how much of a hi-lift expert folks think they are.
I'm not saying they aren't dangerous, but so are many very useful tools....like a chainsaw. Like many tools they need to be treated with respect.
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Tom Rowe
Atlanta, GA

Four wheel drive allows you to get stuck
in places even more inaccessible.

62 88 Regular
67 109 6cyl NADA x2
74 Lightweight - The Antichrist
95 DI 5-speed
95 D90 5-speed
97 D1 Automatic
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  #17  
Old July 23rd, 2013, 10:36 AM
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Quote:
Originally Posted by rijosho View Post
X2. This was all over ExPo as well. Many were lauding its simplicity and ability to stabilize the jack with ease.
http://www.overlandexpo.com/overland...lift-jack.html
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I am talking purely from an aesthetics standpoint.
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  #18  
Old July 23rd, 2013, 10:52 AM
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Sam
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Quote:
Originally Posted by rijosho View Post

Ouch. What does that look like?
Luckily it scrapped down the part of the tibia that has the least amount of flesh. Just a 8"x1" divot left there now. It felt amazing at the time.

So basically we are saying hi-lifts are like women then.... But I agree, wish there was a "safer" solution.
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  #19  
Old July 23rd, 2013, 11:58 AM
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I agree that they're an accident looking for a place to happen.

Having said that, I've been using them since the middle 70's and only once was that for vehicle extraction.

The one that was allegedly bought for Rover duty has only been used around the house for fence stretching / fence post removal.

The neighbor is regularly fascinated by my special broken fence post removal tool
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  #20  
Old July 25th, 2013, 10:32 AM
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What brand is this jack?
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