mep wrote:I see your point speedsense but I think it makes no sense to build something like this without using the ARB function. I guess they can use both options: Run the car with and without ARB.
You want another view? Ok, why not.
I think the tube is big enough to be an antirollbar.
You can see the hole in fact is squared.
The squared section also doesn’t need to be on top in can be located lower also.
Below you see some elements with bigger diameter between them is some black piece. I wonder what they are for.
As far as I know the team said it is an ARB and there is no obvious reason why not to place one exactly there.
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ImageShack.us Excellent, much better picture. Though not the same piece as the other picture (Is this the same car?), this one has the square hole the other doesn't.
As the T piece is in double shear for the dampener, you notice that the bearing for dampener is very large, my guess is that it's probably for the squared inter shaft and round bearing on the outside. Very similar (in size) to a self aligning bearing, except for the square part inside. self aligning bearings are common in use where the application has the potential for bind.
Both the upper and lower piece of the T, would need to be square holed as having only one (on top or bottom) the mechanism would bind and lean or tilt, binding the whole unit.
BTW and I should point out, what you don't see, is the T Bar is actually a I bar, as the bottom, is also a T, which for ease of changing the roll rate, is also a square hole, and simply changing the shaft out (with one larger or smaller) changes roll resistance...
yes, this shaft is large enough and much larger than the other ones I've seen.
The first picture is nothing like this one, and mostly likely not a sway bar.
Don't quite know what the black round thing is under the T however.
Of interest, though is the center of the bell cranks. These are the torsion springs, and if they are connected, from side to side, inside the trans case, they would function not only as springs, but an ARB as well. However they would need some sort of independence from each other yet become connected in roll.
I also don't believe this. Reasons:
-There is no space between because the gearbox and differential needs it.
Depends on case design, there are enough cars in the world with suspension pieces running through the trans case.
- it would be very difficult to get access to the ARB to replace it.
Not an impossible design however,
- the design would be to complicated
Everything about F1 is making something that is complicated and making it simple to use and they use it well.
- The T-rod already needs the space and it's easy to replace it in this position.
The t-rod can easily be used as ARB.
But thanks for posting it, with your explanation I can follow it more!
( Dumb i know!)
Where do they put all those springs 
