We have a 2000 Chevy Venture and It has the 2 seats in the rear where the doors are with a gap in the middle and the 2 seats in the rear to make a bench,

Is there an option for a 3rd seat to go in the Center to make the middle a full bench ??????

Mine has a 3 seats in the middle with no gap. The floor is set-up for both configurations. You may have the captains chairs.

Mine is 8 passenger and the middle row is 3 individual seats with the 2
outsides using the side belts like yours, but the middle one using it's own
belt. You would need all three seats because the 2 outside seats are
narrower even than the two rear ones. Good luck finding them, they are
pretty expensive and when I shopped for my used 99 it was pretty tough to
find 8 pass seating. Best bet may be a trade with someone .

I would you do a search on eBay. Something like "venture seats". I have seen FULL SETS of seats on there for very reasonable prices.

Take Care,