I have a 95 gt convertible. I just got it back from the shop where we installed Steeda full length subframe connectors, aluminum driveshaft, 3:73 gears, and a diff. girdle. I notice on the way home that when I got up to about 40mph I could hear a ringing sound(like the noise of a bell)/vibrating sound. The faster I went the louder/higher pitched the sound got. I only hear it when I am on the gas. The Trac-loc was also rebuilt and was set up fairly tight, but the noise from that quit after a few miles after the lube worked in. I looked under the car and could find nothing loose or rubbing. This noise was not ther before the work was done. Any ideas??