Richard the aftermarket dealers are selling the GM original air selector's ( diverter box is actual name) there are no reproductions of these. I know we carry them.
GMCPaul
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Online Catalog for-GMCPauls Truck Parts.com
67 LWB GMC SuperCustom Fleetside
67 LWB GMC Stepside
67 SWB GMC Stepside
67 SWB GMC Fleetside
67 SWB Chevy CST Fleetside
67 LWB Chevy CST Fleet
67 SWB Chevy Stepside
67 LWB Chevy Stepside
68 2wd Chevy 1/2 t. Panel
68 Chevy Panel 1/2Ton 4X4
68 LWB Chevy Fleet 4X4
69 SWB Chevy Stepside
71 GMC Suburban 402/400
72 LWB Chevy Camper Special
72 LWB Chevy Camper Special
Nope not a typo 2-72 Camper Specials
and no they are NOT FOR SALE MINE MINE MINE and we accept ALL 67 Refugees Looking For More Never Enough!!!