The race car I just bought has Advance Design shocks. I know nothing about them, and Ground Control isn't being very helpful when it comes to information. The car has been stored for 2 years and I want to make sure the shocks are in good shape. All GC tells me is to send them to them and they will rebuild for $135 each. I don't want to spend the $$$ if they don't need rebuilt. I have them off of the car, what can I do to test them. How should they feel? Should I be able to compress them by hand?

Also, how does the adjustments work? Which way do I turn to soften? loosen? Is red adjuster for rebound or is blue?

Are there and published guides available online?

Thank you, Mark