Timewalk mixed level groups?

Hey, so I was just considering doing timewalking for badges to finish out some old reputations. Right now TW is classic. Before I reactivate accounts I wanted to verify... can you do timewalking with a team of mixed levels? Like main from my normal healer, tank on a 110 and then babies of different 80+ brackets?

As long as you are at or above the level range of the timewalking, you are good. Even without timewalking, you can use party sync and level a team of any character range, provided your group is viable, meaning 1 tank 1 healer and 3 dps. You can change spec once inside the dungeon though.