Here are pix of the lower arms on my 65 Chevelle. These arms
only have 2 holes, one at each end on the top.You can see that
the pass side is dented on the lower edge. Also these seem to be
fairly deeply pitted. If I don't have enough pictures let me
know. The build date of this car is June 1965 if that helps to
get the correct type.
I also included a picture of the upper arms at the 12 bolt
housing. Only one has a reinforcement spot welded on. Were both
sides supposed to have it?