The southsides are pretty much the same as the G body and Speedway arms. The only difference is the needle bearings instead of bushings. These types of arms are not direct replacements. They are intended to be used with taller spindles or taller ball joints along with lowering the car for better corner carving. I have a set of new stockers with new ball joints for $120.00 plus shipping if you are interested. I also have a set of new Southsides for $120.00 plus shipping if you want to go in that direction.