Hey Jim I just got back from the shop and the middle belt is actually a little larger than the outside ones. The middle belt also has the adjustment on the latch side and the buckle side is non adjustable. Hope this helps.
Bob
I can’t confirm mine is original but I have 2 stationary female belts,1 adjustable female, 1 stationary male, 2 retractable males, and 2 shoulder belts in the front seat.my rears just contain 2 stationary females and 2 retractable males in the rear. I hope this helps