2002 CADILLAC SEVILLE Power Train Problems

CAR SNAKES EXTREMELY BAD AROUND 45 TO 70 MPH SO BAD IT SHAKES THE ENTIRE CAR LIKE MY WHEELS ARE LOOSE OR BENT AND SO I BOUGHT 4 NEW WHEELS AND GOT ALIGNMENT NO HELP DID RESEARCH AND LEARNED THAT IT IS DUE TO TYPE OF TORQUE CONVERTER IN THE CAR IS A BAD BRAND THAT MESSES UP A LOT AND THAT GM HASN'T ACKNOWLEDGED THE ISSUE WHICH IS SUCH A SHAME AND A SHAM THAT I HATE THEY ARE DOING BECAUSE IT IS AN EXPENSIVE FIX AND I HAVE TO FOOT THE BILL PLUS BUSHING ARE LOW GRADE IN FRONT END AND YOU WOULD THINK BE HIGH END VEHICLE SHOULD BE HIGH END PARTS HAPPENED FIRST ON HIGHWAY AND HAS PROGRESSIVELY GOTTEN WORSE

DRIVE TRAIN CRADLE HAS WEAKENED SIGNIFICANTLY FROM RUST. WHILE DRIVING THERE IS A LOOSENESS OF THE SUSPENSION FELT AND A SHIFTING EVIDENT WHEN ACCELERATING AND DECELERATING. I RESIDE IN MINNESOTA AND THE D.O.T. USES SALT ON THE ROADS DURING THE WINTER SEASON AND THIS HAS SIGNIFICANTLY ACCELERATED CORROSION OF VEHICLES AND THEIR EXPOSED COMPONENTS. MATERIALS USED FOR CRITICAL COMPONENTS ON VEHICLES MUST WITHSTAND THIS FACTOR OR LIVES MAY BE LOST DUE TO THIS CORROSION, FAILURE OF THE SUB-FRAME CRADLE WILL BE CATASTROPHIC LOSS OF VEHICLE CONTROL . HELP... THE MANUFACTURER SHOULD RECALL THESE VEHICLES AND REPLACE SUCH A MAJOR COMPONENT WITH A RESISTANT COMPONENT. VEHICLE HAS BEEN PARKED NOW SINCE 2008 WHEN THIS ISSUE HAD BEEN DISCOVERED. BEAUTIFUL CAR AND I'D LIKE THE SUB=FRAME REPLACED, ONLY THAT COMPONENT NEEDED TO ENABLE ROADABILITY. PHOTO/S OF DEGRADATION UPON REQUEST.

I WAS GOING TO GET AN INSPECTION STICKER AND THE VEHICLE WOULD NOT PASS BECAUSE OF AN EMISSION PROBLEM. CYLINDER 4 WAS MISFIRING. *TR