New correct design concealed windshield wiper arm assembly for your bird.  Exact fit for all 70 - 81 firebird and trans am models with the concealed or hidden wipers.  Which means when your wipers are turned off they kind of slide down behind the back edge of the hood.  This arm assembly is for the right hand, passengers side.  Exact shape, size, and details.  Premium quality!

PART NUMBER: WIN-602

Non-concealed wipers were standard from 1970 - 1978.  The wiper system was 2 speeds, on/low and on/high.  The wiper arms have a brushed stainless look and are visible on the windshield.  Concealed wipers were optional.  They'll have black colored arms and when off, will park (or drop down) behind the back edge of the hood.  Concealed wipers became the standard wiper system in 1979 with delayed (or pulse) wipers being optional.