tire rod on 1996 Mercury Cougar

mercury dealership changed right front tire rod on my sable and now it drives feeling all over the road and boucing and my steering is off too. the dealership said they dont feel what i feel and they did nothing wrong but there is definitely something wrong with my vehicle. another mechanic said tire rod needs adjusting or correct alignment or something is loose. dealership says no tire rod and fine and nothing is loose and their alignment is perfect. please help. thank you.

Asked by for the 1996 Mercury Cougar
Have a independent shop align your vehicle and ask them to check suspension for worn parts while they are aligning and ask for their opinion