6 by 8 but not to much of a choice in that size tho
On all doors front and rear 6x8.
Door Speakers are 6x8...
6x8 door speakers
6x8
Front and rear speakers are 6" X 8".
All 4 doors speakers on the Ford Expedition are 6x8.
6x8
I don't know what size speakers are in the Tahoe. But the Speakers in the Ford Expedition are 6x8 on all the doors. If the sizes are the same they will fit.
a 1999 ford experdition battery
6X8 inch speakers for front and rear doors.
Front and Rear are 5x7
6.5" speakers in the front