Tahoe Interior Bed Floor ?

[Ironhorse]

Wife and I have a '99 4WD old body style Tahoe with the 5.7. Been a good ride, have had it nearly 8 years now. "Kinda" looking around to up grade maybe to an 05-06 Tahoe, possibly an 07. Because of the useage we have with our current Tahoe would like to know when or what year the rear floor is not longer flat with the removal of the third seat and folding the center bench. Our 82, 88 and 91 Suburbans all had a complely flat floor with third seat removed and center seat folded, same as our '99 Tahoe. Seems the newer body styles don't have a completly flat floor any more and that is an issue for us.