Is the geometry the same between cast control arms of the same type car? I have a 94 Sundance with high miles. I bought a couple control arms (Also cast) from a 91 Shadow. This car had super low miles so since I was going to install new ball joints, I thought I'd get these with half the miles so the rubber would be better. Then I could install the joints on the new arms in a vice or something. Well, as I was taking mine off, I noticed one difference. Mine has the sway bar bolts treaded right in to my control arms. The 91 Shadow ares have "nut's and bolts" I assume the rest is the same, but would like to know for sure. Any one run in to this? I'm sure they did it to save time down the line putting the cars together. I can deal with having the "nut's and bolts" since this will be a once in a lifetime swap. Not like I change sway bar bushings everyday.