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EV2DEMON, tell me more about "spring rate". How does that apply to me with front shocks/torsion bars and rear shocks/leaf springs?



A spring is a spring is a spring. The car doesn't care that it has torsion bars on one end and leaf springs at the other. For all intents and purposes, they both do the same thing. Shocks are dampers that have no effect on spring rate, though spring rate will determine what shocks to use.

Sway bars can be used to limit body roll, but a sway bar big enough to make a stock sprung car corner flat will lead to excessive understeer, even more than what the car was originally built with. By increasing spring rate (stiffer torsion bars in this case) to limit body roll/suspension compression, the sway bars can be used to tune under/oversteer based on the rest of the combination.

Now, obviously a classic Mopar has it's limits and will never be a Viper, but by matching components (springs, shocks, sway bars, alignment...) you can end up with a reasonably neutral driving car that will hold it's own against many more modern rides.