Is the car safely jacked up for automatic transmission change (photo)?
 

Hello.

Is this Daimler-Chrysler Grand Voyager IV 3.3 LE safely jacked up for automatic transmission change (photo)? Yes, the driveway to the garage is slightly downhill.
0.5ft felloe, three concrete slabs and 3 tons jack stand. At the rear two ramps, and the wheels with 8 tons (17636lb) lashing straps tightened at the ramps.
Approximately 2.5ft (77cm) between transmission sump and road.
I own a hydraulic motorcycle lift that has a minimum height of ~1 foot (~ 30cm). I could use it to lower the transmission slowly after losing the screws (?).
How much does the automatic transmission weigh?

https://cimg5.ibsrv.net/gimg/www.chr...ea14750e9f.jpg
The tire and plates at the front, were used only for lifting with stamp jack.


Thanks.

why not wood under the tyres thats more stable
i think this is dangerous

Under the front tires? I have to remove at least the wheel on the driver's side, to dissassemble the transmission, and pulling it in the direction of the removed tire. I think I have to pull and remove the driver's tire... and half shaft, but not the front-seat passenger tire and half shaft. Is that correct?
I think that the lashing straps with max. 8 tons of load make turning the rear wheels impossible.
The ramps and wheels are linked together (the yellow 8 ton straps, used on trucks to secure the cargo) like a "human foot". It can not roll forward (down).

https://cimg5.ibsrv.net/gimg/www.chr...1160cb96b1.jpg
Without the straps I would only have the parking brake of the rear wheels.
I do not trust the parking brake for jacking a car generally.

oh okay i thought the transmission was in straight line
maybe a extra stut on the front sub in the middle?
for stability
sorry for my bad english i am dutch

My english is perhaps A2/B1.
I think, it would be like a table with 5 legs.
These my only two jack stands, and the front is perhaps 90cm above the ground.
Are the concrete slabs possibly endangered? The Jack Stand is not only worn by the rim. The inner circle also carries the plate.

WOW!!!! that looks scary as ****!!!

I would not trust that in a million years!

If it's your only choice, I would put some kind of anti-slip mat between each of those concrete slabs at the minimum, the concrete will slide on each other very easily, still I personally wouldn't get under that thing at the front.

The rear looks secure to me.

:-D
Why should the concrete slabs slip?
There are no shearing forces. No movement from back to front (or vice versa).
Only pressure from top to bottom.
Currently I can not remove the rusted 32mm screw (behind the rim). Will probably be a separate topic ...

I would be nervous of any movement you out on that engine or force causing the clans to rock, even putting force on a bolt to undo it has the potential to cause inertia that could make them slip.

Just my opinion though

No lateral movement, no wobbling when I press against the front car wings.
For a lateral movement of the front, the rear wheels would have to be able to turn.
Or at least be able to turn/slip on the floor. Not possible with the lashed ramps (like human "feets").

But yes, it looks "weird" ...