I agree...balljoints are in need of replacement. As for shocks, I run the KYB AGX, which is a step up from the GR-2, and 4 way adjustable. I got them on ebay for around $330 shipped.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget