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Off-road jacks

Mastiff

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I've carried around Hi-Lift jacks for years, but never really needed to use one. A few weeks ago a tire blew on my Jeep and I ended up in the median, basically off road in soft dirt and small brush, needing to change the tire. The dirt was soft and the Jeep was leaning way down, so I needed to jack it up quite a bit to get the spare on.

So I got down the heavy ass hi-lift. Unless you have heavy duty bumpers that are practically made for it, the number of jacking spots is very limited. I have pretty stout rocker guards on there, so I went with that. Thing is, the jack tries as hard as it can to lean in and drill into the body. After doing our best to manage that, the next obvious problem is that the axle just keeps drooping away as you jack the body/frame. In the end, the hi-lift was nearly worthless. I know I could have figured a way to tie a strap around the axle up to the frame or something, but what a pain for a simple tire swap.

Thankfully, I also carry a small bottle jack with some home made extensions and base plate in my kit. This was easier to use and solved the problem, though its range maxed out and we had to dig a little to fit the tire. Just a few inches. The extensions let me get high, but I couldn't fit them under in the first place.

The best solution I've seen are the off-road floor jacks, with something like 25" of range, but they are pricey and pretty awkward/heavy to store all the time. A big scissor jack designed for off-road use might be the best compromise, but a quick Google search isn't showing anything. I seem to recall a thread about old Humvee jacks along these lines?
 
most use a lighter weight AL jack with a skid or larger tires. You should only need to get under an axle tube to change a tire so I'm not sure why you would need 25" of lift range.

googlefu

offroadfloorjack-featured.jpg
 
most use a lighter weight AL jack with a skid or larger tires. You should only need to get under an axle tube to change a tire so I'm not sure why you would need 25" of lift range.

googlefu

View attachment 263041

Agreed, the massive range is not needed. That may actually be the max height with an extension anyway. Is that a Harbor Freight with front wheels replaced?
 
I've carried around Hi-Lift jacks for years, but never really needed to use one. A few weeks ago a tire blew on my Jeep and I ended up in the median, basically off road in soft dirt and small brush, needing to change the tire. The dirt was soft and the Jeep was leaning way down, so I needed to jack it up quite a bit to get the spare on.

So I got down the heavy ass hi-lift. Unless you have heavy duty bumpers that are practically made for it, the number of jacking spots is very limited. I have pretty stout rocker guards on there, so I went with that. Thing is, the jack tries as hard as it can to lean in and drill into the body. After doing our best to manage that, the next obvious problem is that the axle just keeps drooping away as you jack the body/frame. In the end, the hi-lift was nearly worthless. I know I could have figured a way to tie a strap around the axle up to the frame or something, but what a pain for a simple tire swap.

Thankfully, I also carry a small bottle jack with some home made extensions and base plate in my kit. This was easier to use and solved the problem, though its range maxed out and we had to dig a little to fit the tire. Just a few inches. The extensions let me get high, but I couldn't fit them under in the first place.

The best solution I've seen are the off-road floor jacks, with something like 25" of range, but they are pricey and pretty awkward/heavy to store all the time. A big scissor jack designed for off-road use might be the best compromise, but a quick Google search isn't showing anything. I seem to recall a thread about old Humvee jacks along these lines?
I wonder if they have them here but in the middle East we used to have air bags that you slip under tje vehicle and hook up to your exhaust and rev it up.
Does not damage anything, is very stable, doesn't dig in soft soil, and is very light weight.
Deflated it's about an inch thick.
 
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A bottle jack and a block of wood take up very little space.

Hi Lifts have there place, lots of companies make attachments for various bumper styles.
 
Looks like the HF 1.5T "race" jack weighs in at about 30 pounds. I'd want a good way to tie down a projectile like that.
 
I wonder if they have them here but in the middle East we used to have air bags that you slip under tje vehicle and hook up to your exhaust and rev it up.
Does not damage anything, is very stable, doesn't dig in soft soil, and is very light weight.
Deflated it's anout an inch thick.

They have them here
 
You can kind of see the HF 1.5T on the left, tied to the cage. The handle is under the spare tire along with my axle shafts.


20170912_174746-jpg.245737
 
I have a factory pickup truck jack,I think its GM,(they used to be mounted on the front inner fender well)--that has a long crank handle,a wide base,and the "piston" in it is in two telescopic sections (like a antenna on a radio)--it'll fit under an axle tube with a flat tire,and has enough height to lift it up high enough to change a pretty large tire..

It looks much like this one...I think some Ford trucks came factory with similar ones too..GM truck jack.jpg
 
most use a lighter weight AL jack with a skid or larger tires. You should only need to get under an axle tube to change a tire so I'm not sure why you would need 25" of lift range.

googlefu

View attachment 263041


Depends on your rig. My friends truck has unimog axles and 44s. He has 24" clearance under his axles. He'd need more than 1" of lift. Someone on 54" boggers or tractor tires would need more, too.
 

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