when i put the 3rd row seat in my 65 i cut the mounting pockets out of the 99 suburban and mounted them in the floor. that way it is easy to remove the seat if you want to for storage
Pictures would help. I know this can be done, I couldn't find clear enough pictures to show it.
I changed the information on the seats to show what they are from. If someone could host these pictures they will be saved for future reference ...........g