AC Delete Housing: 70-81 Firebird CamaroThis is the 70 81 version of the housing used on cars that have had the factory A. C system on the firewall removed yet have to maintain the Factory heater core system to allow the vents and outlets. This part is designed for left hand drive vehicles or those with the housing located on the right hand side of the firewallthe right side referring to the American passenger side. Its important to verify the depth of the mouse wheel fan on your heater