DORMAN Auto Trans Case Vent | For 1973-1974, 1987-1990 CHEVROLET BLAZER
Part Type: Automatic Transmission Case Vent. 1973 Chevrolet Blazer TransmissionMfrCode: THM350;. 1974 Chevrolet Blazer TransmissionMfrCode: THM350;. 1987 Chevrolet Blazer Manual 4 Speed Transmission; TransmissionMfrCode: SM465/M20;.