I had the same thing happen to me. The shield is different for the SVT and regular GL. I think they gave me the wrong one. Parts guy said it is easy to do cause it is hard to see the notation on microfiche about which one is for which car. If you shield did not quite match up for mounting, you may have been sold the wrong one. The price I was quote was about $50 dollars for a new one. With my shield, there are two square clips that fit into the front of the unit to hold it in place with screws that screw into this square clips. The svt did not have this setup. I have planned to purchase the correct shield and will be installing it myself to be sure it is done correctly!!!!
