Auto vs 4 spd tunnel on 1967 GTX

[skyman51]

Hi
Does anyone have any photos of the tunnel from underneath from a 1967 GTX? One of an automatic and one of a 4spd. What was the difference? Thanks

 

[ws27]

The way the factory did it was they welded the hump in from the top, then just literally hacked the floor open from the bottom. Everything was done be hand.