My guess would be to remove our seat and see how to adjust it to make room?
If you need to remove the seat to adjust something, then there is no way the 'factory' approach would be to tuck the boot there.
I think the flap was intended to just drape down into the open space behind the metal panel. My factory boot only pops out from that location when there is a stiff craoss wind. So at least 95% of the time there are no issues.
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