[LS short box]

I used a Speedway Engineering splined sway bar on my 67 Nova project. As said above not cheap but worked very well. They asked questions about the cars weight overall. Front end weight. Frame rail width. Before I bought the actual splined bar I bought their mounts and tube along with their arms. Then I used a scrap piece round stock to mock everything to get correct width for the splined shaft. Worked for me.