Sway-A-Way Torsion Bars

I have a set of their bars for my ‘71 Satellite. I bought them second hand and haven’t personally run them, but they appear to be a very high quality bar. I’d have to agree they’re at least as good as Firm Feel.

I exchanged emails with them as well as the previous owner didn’t know the spring rate of the bars, just the diameter. The tech that helped me was great, he was happy to help even though I wasn’t the original buyer and actually worked through the calculations with me. Which not only gave me the spring rate for the bars but improved my understanding a bit at the theoretical level.