I don't have any complaints about the Hotchkis leaf springs. They will mess with your pinion angle, which is challenging to fix. I believe it is mostly due to the rear end yoke being higher than the transmission yoke. I was able to shim my transmission up which helped greatly. It still has a vibration that starts around 90mph, but I'll likely have to to some "massaging" to the floor to get the trans (TKO-500) higher.
If you have a problem with your headers bottoming out, these springs aren't for you, unless you plan on replacing them.
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