I'M sure the front doors on the tahoe and the suburban are the same, and I know that the rear doors are not. What I need to know is the rear windows on the doors the same or the suburbans windows a little longer/wider?

 

I know that at least the top of the window in the suburban is longer for as the Ventvisors are two different part numbers.

 

The Suburban and Avalanche rear door side glass is roughly 3/4" wider (across) than that of the Tahoe.