I have a 2006 2WD Limited Sequoia. From the day we got it it seems to bottom out in the rear on the slightest of dips and bumps. I can drive 2 mph over a speed bump at the grocery store, and it feels like the back hits bottom. There is a setting I can adjust for height of the rear suspension, but I have ensured that is set on the middle setting with the same results. Anyone else experience this? Thanks.