The rear portion carpet goes in first. Then the front seats bolt over that. (rear seats over the top of carpet too) Then the rear leading edge of the front portion of carpet goes over the tops of the front seat legs (without any notches or cut outs). This is how you can tell if you have the correctly made carpet. The front portion of Al Knoch carpet ends about three inches too far back and makes you cut notches for the seat legs.
In reality, you can install the front portion of carpet before the seats, then partially fold it back, install the seats, then flop it back in place.
Sorry, no pictures, but I hope my description gets you there.
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold 1980 T/A SE Bandit - Sold