TX WTB - Air recirculation atapter GM 3840182

[CustomCab66]

Hello gents,

Came across a mostly complete factory air setup for my c-10. looking at the GM books there is an adapter between the heater box and the firewall in order for the air to recirculate. Most of the seals for it will have to be made using a foam yoga mat so that i'm not to concerned about. I just looking for an adapter assembly before i hack up the heater box and make a DIY one. Figure its a fat chance someone will let one go but just scouting parts.

12. 9.208 seal ................3841952
13. 9.208 Adapter assy.....3840182
14. 9.208 Seal................3841953