Join Date: Oct 2000
Location: Munich, Germany
Programs: LH HON, DL FO/MM, Marriott Lifetime Platinum, Accor Lifetime Platinum, Sixt Diamond
Posts: 6,174
If you arrive on Delta (terminal 3), you should be fine... even as a visitor, clearing immigration and customs was a breeze all of 2001.
Don't worry about your connection - there shouldn't be a problem. I never missed a connection there.