Cross shafts could be flipped 180, too, if they're offset...
I did my alignment with a Fastrax, 2 jackstands, a piece of string, and a tape measure. Drives nice with even tire wear.
Specialty Products Company 91000 FasTrax Camber/Caster Gauge for Wheels from 13" to 18"
https://www.amazon.com/dp/B000PG6OW2/?tag=gbody-20
The tool looks good, I will get myself this one too
I followed your advice and checked the cross shafts again. They are symetric, so it doesn't matter what way they are oriented. That's already a good thing
The stock set up with OEM parts has a positive setting on the camber. Have you driven the car or bounced the front end since the upgrade?
Thanks for the hint with the stock OEM camber. I remembered that I have the factory-documentation from "Pontiac Historical Services" for my car, and indeed, the car had a positive camber. I posted the picture of this detail below this. If my pictures from above are any indication, I would guess there is way too much, as only + o,5 is required. The car hasn't been out on the street yet. Still too much salt and snow here... Bounced, well sort of... Still looked like an enormous +camber...
an alignment is money well spent.if you can't justify spending the money on that service why replace the arms with better pieces in the first place.
I replaced the parts, because the old control arms were terribly rotten and devoured by rust. The bushings were bad too. Something the technical control board should have seen at the last inspections, but that's a whole other story. On the other hand, the upgrade came cheaper than buying stock parts. Please bear in mind that I am from outside the US, so parts will get severely slammed by import-taxes. Especially if they are OEM. It got even worse since the Donald Trump is in office, as this is retaliation for his exagerated taxation of many european products. I would immediately, without any hesitation, spend my Euros on a good alignment, but the main problem is this: US-Car on the european continent. Workshops in general won't touch them, not to mention old american cars, for which the reasons are among others wrong tools (not metric), no experience, not much literature, no access to professional us-parts-suppliers, etc.