Product Description
This single (1) groove power steering pump pulley will work for either small or big block V8 applications with a short or long water pump. The groove will line up with the outer groove of a 3 groove crank pulley on applications with a short water pump or the inner groove of a 2 groove crank pulley on long water long water pump applications. Danchuk # 15558 will work on any 1955-1957 classic Chevy with a small or big block V8 as well as other vehicles you may have in your collection. Replaces GM # 3770509.