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4-bar vs. leaf springs
I am curious about the performance differences between a 4-bar rear suspension, like you get with most of the air ride setups, vs leaf springs. I've considered a full-on 4-link system for my 73 Jimmy but I'm not sure I want to take on a project like that. A bolt-on (more or less) 4-bar/panhard system looks appealing if performance gains are to be had. Lets assume coilover for the 4-bar suspension in this case. Frame is already notched.
Is there a great improvement in ride quality?
What about traction in higher horsepower applications? Would a Leaf/Caltrac system perform better?
What about strength?
Other considerations?
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