Oh man! About 20 years ago I bought a sway bar for $10 complete. After buying new poly bushings, I put it on. All I can say is “the difference between night and day”. If I remember right, the sway bars off the 73-87 Square bodies are the same, and since they became a more popular option then, it’s pretty easy to find them.
Just make sure you get the frame brackets, when you pull it.