235/30R19 = too short
235/35R19 = great size, great match to 265/30R19 rear
245/35R19 = a bit aggressive but many use it and get away with it. Taller than 265/30R19.
265/30R19 rear = great size
Tires
http://www.tirerack.com/a.jsp?a=AH8&...ires/index.jsp