I'll be going up to Josh's where my car is right now, tomorrow. If you can wait I will take a measurement for you. Just giving you the heads up, the pro-kit rear spring rate is exactly the same as a factory iroc spring...pro-kit made it look like the ass end came up just a hair and the front end drop considerably once it all settled...
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87 iroc with the usual go fast stuff
heavier than your half ton.
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