Who has a 97 and has experience DS vibration? Before my engine blew with 8k on the odom, I never drove faster than 75 (I know, I know) but anyway now that I have a new short block, along with 4.10s, I noticed while breaking it in that when I cam close to 90 MPH in 6th gear (2000 rpm) that the noise became quit loud and I can't figure out if it is just a loud engine or maybe I DO need a new DS.

GM claims that the 97s didn't have the DS problem experienced in 96 and pre 96.

Anybody with a 97 can address this situation?