Negative camber struts came out on the later STis (1984) here in Australia. Then the series 2 GTis had the same camber but the offset springs as well. Early 505 struts were the same as late 504. If you use LCAs from a late 504 (these have the screw on balljoint) you can fit the negative camber struts to a 504, if you use the 505 arms then you will then have too much negative camber. Other wise fit early 505 arms (with the rebuildable ball joint) to a 504 with 504 struts, this will give you about the same about of negative camber as the late struts with 504 arms.
Thanks a lot.
I bought the struts without knowing which type of car they came from, all I was told is that they come from a late model.
My car being 1982 (so very late model) has the later LCA by default which allowed me to fit the struts without hassle and I also have the 27 mm V6 ARB.
I don't know if by luck I got the negative camber struts, or it any late 505 strut with my LCAs would give negative camber, but I am very very happy with the result thank God.
I cut a tiny bit of the spring. The car still sits relatively high but handling is better than ever.