I have a 1992 Chevy Blazer S-10. I have replaced the engine with a Chevy Short block 350 V8. recently it developed a clunk which has turned out to be the torsion bar and insulators. I need to replace them but am wondering if they make more of a heavy duty one that will fit the Blazer, that is stiffer and possibly even wider, for more stability?

 

I'm in the market for some ZR2 t-bars. Also, this LINK has some good info on full size torsion bars and their load rating. Lastly, this LINK has the load rating and diameter of various bars.