synolimit

1. 2x2 or 3x3 feet will be added to the threaded ends and of course it'll be measured as straight as possible. I'll probable weld a bolt to a plate and screw it onto the shafts end and lock it down with a pin going through or something.

2. Most rods are made of chrome plated carbon steel or something stronger as they are lifting stuff in the 1250lbs range each.

3. You missed what I wrote. I said my tank only goes to 165psi which will equal 3300 lbs. Each cylinder can do 250psi max which is 5000 lbs of force. If my compressor can't do it then I'll buy a tank of nitrogen which holds the gas in the 2000-3000psi range. Then I can turn it down to 200-250psi in the lines.

4. Once up in the air of course I won't be getting under it. That's why air jacks systems come with mounts that rap around the cylinder shafts. I'll just be using my jack stands in the intended spots Nissan made for the car.

5. As much reading as I've done these cylinders have been used before so I'm sure they work but I'm still looking for single stage. If I can't find it which I'm not seeing as single stage for some reason only has very very small travel lengths I'll just use these and run them as double stage no problem. Or I'll cap the air line return port and push them up all the way with my hand with the air valve in the open position. I'm sure they can't be harder to push up like pushing on a cars shock shaft.

6. Lines will be cut and coiled so all 4 are 100% equal in length so lift will be equal as they should.

7. As for uneven surfaces there's nothing really to do. I can measure up from my garage floor and mount them accordingly but someone else's garage floor isn't going to be the same so I just have to mount to what I think will work. Most pits or floors are equal I'd hope minus maybe a small drainage run in one direction. At least these will only be used for seconds in each direction as the jack stands will be used when up in the air.

Hope that clarifies a few things.

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13 370z-