I recently replaced the subframe mounts and front shocks on my 280SE. I did this because the lateral support bar had broken in two, it also has been replaced. All the tires have been balanced (twice) and the front end aligned. Each of these helped but I still feel a slight vibration in the steering wheel above 65mph. Is this normal? Am I missing something? Motor mounts? The transmission shifter has no vibration and flex disk is in good condition. Any input on next steps would be appreciated.
Ron

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Ron
1972 280 SE 4.5
2017 Lexus ES 350
2011 Ford Escape
2006 Chevy Silvarado