Where do these Heater Box Seals go on 1967-1972 C10

[HeavyHauler]

I purchased a set of heater box seals from Summit for a 68 Chevy C10 with Non-AC heater box.

I know where some of these go but what about the square one in the upper middle of the pic and the large seal in the upper left? Also where do the small seals go in the middle of the pic?

I think the rectangular seal in the bottom right goes in between the heater core and heater box?

[HO455]

Here's a link to my heater box resurrection. Starting at post1010.

http://67-72chevytrucks.com/vboard/s...698377&page=41

#'s 1 & 3 are inner and outer firewall seals.

The small #4 seals are for around the heater core tubes. I believe the square ones go inside the heater box and the round ones get pushed in the holes where the tubes exit the box.

I'm not sure about #2 but I think it goes to the box inside the cab. I didn't remove the heat box part inside the cab so I don't know for sure.