Compressor hose assembly is for all late-1978-81 Firebird, Formula, Sprint & Trans-AM V8 except Turbo equipped models. This is the hose assembly that bolts to the back of the of the compressor, connecting it to the accumulator at the firewall and the top fitting of the condenser in front of the radiator support. American made w/barrier hose that is compatible with both R12 & 134a refrigerants. NOTE - 1978 models used two versions of this hose. This version was typically found on the later 1978. Both hoses interchange without modification. See our other listings for that hose.