Rear Suspension Shock Absorber problems of the 2017 Ford F-250

Tl-the contact owns a 2017 Ford F-250 super. The contact stated that after purchasing the vehicle brand new after driving 3000 miles it now has the "death wobble". The contact has been taken back to the dealer kerlin motor company, inc state road 15 silver lake, in 46982 260-408-6052 three times. Each time the dealer contacted the manufacturer and changed the tie rode, they realigned and now they are saying the issue could be the shock absorbers in the front. . The vehicle only has 29,000 miles on it and the was still covered for the repairs under the warranty. The contact was concerned about their safety fearing a crash in the future if the issue does not get resolved. The failure mileage was 6,000. Tf.