4 Speed Tunnel - Is it factory?

PocketAces said
How is the hump attached to the tunnel? Spot welds?

No...basically just 1-inch mig beads about every 6 inches or so where the hump meets the floor pan/tunnel, then seam-sealed to death.

Wish I could show you a pic I had of mine, but I lost a whole whack of pics at my last harddrive crash!....Grrrrrr