Very odd shimmy

My '01 Aztek has a very odd shimmy. It only happens when turning right, at highway speeds, and when accelerating. Not when turning left, and not while just ‘coasting’. Only when accelerating.

The mechanic replaced a tie rod end, and that seemed to fix things for a few hundred miles. But now it’s back and is happening at lower speeds.

CV Joint?

^
+1

If I had to guess, I would say that an inner CV joint is the problem.