Wish on! I deldt for several years with NISSAN trucks with a 55 to 70 mph vibration. Nissan had a answer. NO REPAIR PERIOD ITS NORMAL. They wanted customers to be made aware before purchase and NO repair would be made or attempted. It was inherited in the truck. Most we did was balance tires etc. Never saw the vibration cause any kind of failure of anything. It was a shake from the rear and very obvisious. Cadallic Broughams had a moan boom/vibration(some not all) at 70 mph. 28 page TSB with a warning that any and all may or may not repair said vehicle. Then the TSB was undated. PERFORM NO REPAIR and contact DSM for buyback if customer desires. Had a DSM tell me on one that IF I replaced anything to correct it they(G. M. )would NOT PAY the claim and offer owner eaither live with it or start buyback procedure. So don't assume its greener on the other side of anything.