I just got back my 09 DC from getting the 15K mile service, as well as getting the new TPMS calibrated to my truck (FJ wheels on BFG ATs). Going in to the shop the truck ran well - stock up front suspension, the TSB AAL and a 1.5" AAL in back.
Now, coming out, the truck rides well still. But starting at about 50mph, the steering wheel shakes. Not constantly. Like, a second on, and a second off. When shaking the steering wheel can be visibly seen to vibrate about 1/2 inch. Then it settles. Then starts. Then settles. It's not similar to a flat or out of balance tire (which were fine going in). The truck doesn't drift or really behave any differently. No funky sounds.
I'm taking it in on Saturday for them to fix whatever the jacked up. I'm pretty sure that, due to the intermittent nature, it's not the alignment or balance.