I Am Trying To Raise The Rear End Of My Gto To Accomadate Room For Oversized Tires . In Order To Get Stronger Springs I Need To Know What The Stock Hieght Of The Rear Chassis Is And To And From What Point Do You Measure This . The Existing Spring Are Original And Are Probabably Weak So A Measurment On
The Actual Car Will Be Inaccurate. At Least That Is What The Spring Supplier Is Telling Me. Please Help