This is, what I was not sure, if Maxxcam would work due to the size.If you use the MaxxCam 2 the adapter sleeve with be the same for both ends.
The MaxxCam RS is strictly for S10 and will not work on the Astro.
There is an AstroCam that combines the insert from the RS with the arm of the MaxxCam 2. This will work if your are only trying to adjusted for spring sag.
The bars from sway away will be the 1.14 or 1.20.
The 1.24 bars will be extremely heavy for the Astro.
The 1.08 bars and lower bars are of no use to us.
There are also bars available from firmfeel.com
1.12 bar would be equal to stock Astro
And the 1.18 bar for extra capacity
Any testing with torsion bars would be very expensive for me due to postal charges, so I would wait for your opinion. I checked all central Europe for the salvage parts and torsion bars are real problem, so I will have big issue, if I loose any.
Than I will be very happy to find decent solution for our problem.