Max jack

[Donald O.]

Re: Max jack

lastly I can't really tell but are the columns in the open diff picture appear to be leaning inward?

camera lens focal length
or lens distortion

[Ralph E.]

Re: Max jack

Interesting that the Max Jack is considered portable but is still bolted to the floor like any other two post lift.

[Tom R.]

Re: Max jack

Gary

See that you got lots of feedback. I have used one for several years now and configured it (column spacing) so I could hoist either the C5 or C3. I use it frequently just to check underneath, drop the differential, change oil, drop a starter, etc. I as well have a ceiling height limitation...think its 8' so this works nicely. Even have used it to do brakes on a Jeep Grand Cherokee.

After several uses or before use I check to ensure anchors still tight before loading the arms.

I've even used it to cut wood in place of stands by raising the arms and extending them outward!

[Gary R.]

Re: Max jack

Thank you Tom. I just saw you replied as well on CF. You know I was just thinking about using them for a raised platform deal as well, like you did for cutting wood.

Have you seen the anchors loosen up after use? I have use RAWL anchors for many years in concrete and once they're in they seem to be set for life. Now I haven't installed one of these lifts to load them either so I am interested in if you found any issue.

[Frank K.]

Re: Max jack

C3 are easy to work on just use good jack stands or buy a ramp or build one. There is a stationary style ramp you can leave your car on and still have room under the car to do small repairs. It looks sturdy some one might know the name it goes by. A couple of people can install it in and hour.

[Gary R.]

Re: Max jack

C3 are easy to work on just use good jack stands or buy a ramp or build one. There is a stationary style ramp you can leave your car on and still have room under the car to do small repairs. It looks sturdy some one might know the name it goes by. A couple of people can install it in and hour.

Thanks Frank, I think you are referring to a quick-lift ramp. I have one and it's great but I'm not getting any younger and working on a creeper is a back killer now in my case so I want something better. 40 years of jack stands is enough.

I will probably just sell the quick-lift when the time comes.

[Tom R.]

Re: Max jack

Have you seen the anchors loosen up after use? I have use RAWL anchors for many years in concrete and once they're in they seem to be set for life. Now I haven't installed one of these lifts to load them either so I am interested in if you found any issue.

It's the up and down vibration when under weight that would cause them to loosen. The one time I used it extensively was when I had pulled the radiator and decided to proceed when stopping fluid leaks by replacing gaskets, oil pan, valve cover and, in general did a refresh of the engine compartment. I did not find any that loosened to any degree that caused me to be alarmed. I have yet to disassemble and take advantage of its mobility so I leave it in place. Hydro fluid did leak early on and I had to really tighten connections. I understand later designs included better connections. I really need to disconnect and replace seals or whatever to ensure tight connections but I love having it...makes routine maintenance much more fun.

For example on the C3, I keep an eye on a leak that I suspect is coming from where the tranny connects to the engine, its an automatic. I read somewhere that this sort of leak could be from the tranny, I guess a bearing and would result in a tranny rebuild to correct the problem...so I throw it on the lift to inspect and look around while underneath for other suspects.

[Frank K.]

Re: Max jack

You need a concrete with a rated psi strength to secure anchors. Set them a 1/2 inch below your slab ( most homes have a if your lucky 4 inch slab not enough ) Dig out a area at least 12 inch square and place rebar in the hole for strength and tie off to the existing square. Call a concrete truck and have him qualify the mix. A four foot deep hole in the north east will get you below the frost line ,else where check with your local building official. I use Hilti anchors and not depot . This is the only way i would secure this or any two post lift in a home concrete slab!

[Mark T.]

Re: Max jack

Frank most lift Manufactures recommend more concrete than a 12 inch square. We use wej-it bolts They cost more but are much stronger.
The concrete should also be 4000 psi As my partner says the more concrete the better.
Gary I sent you a private email check it out
Mark

[Dick W.]

Re: Max jack

Frank most lift Manufactures recommend more concrete than a 12 inch square. We use wej-it bolts They cost more but are much stronger.
The concrete should also be 4000 psi As my partner says the more concrete the better.
Gary I sent you a private email check it out
Mark

I have used those bolts and also use the epoxy as an added safety measure.

[Steve M.]

Re: Max jack

I have the MaxJax and have used it for 6 years in a 2 story 8 foot tall garage. With 8 feet of height you do not have many choices but this is one that I would recommend. It is well made and easy to move out of the way to open up floor space when not needed. You do need to make sure that your concrete floor is thick enough and you do not want to install too close to the edge of the concrete floor. I have not had any problems with the anchors 'working loose' but do check them and torque them again when reinstalling. I have used it for 1969 and 2002 Corvettes, a Chevrolet S10 truck and a Toyota Highlander. Doing a frame off on the 1969 convertible and it has made life a lot more enjoyable.

[Patrick H.]

Re: Max jack

I had the concrete floor in my new barn poured with adequate depth and strength to be able to use a MaxJack as second lift, in addition to my 4 post. There is also rebar, so it's more than good enough to use. However, I designed that in from Day 1.

Someday I'll even get to buy one of these and try it.

[Tom R.]

Re: Max jack

I have used those bolts and also use the epoxy as an added safety measure.

My MaxJaxx came with the Wej-its and I used the epoxy as well. My concrete was poured back in the probably 1950s.

[Frank K.]

Re: Max jack

How thick was your concrete slab? How many bolt holes is there? How wide is the flange that fits on the floor? What model MaxJax? It looks like something i can use. Thanks

[Donald O.]

Re: Max jack

How thick was your concrete slab? How many bolt holes is there? How wide is the flange that fits on the floor? What model MaxJax? It looks like something i can use. Thanks

I'm curios as well.
Although I would have killed for a 2 post or 4 post 30-40 years ago, the need is less now but still wanted.