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August 2013 Backward Glances Ford Gpa Engine

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The GPA engine is the same as the Ford-built GPW land jeep (and the Willys-built jeep) but with some external additions. The pulley on top is what drives the capstan winch on the bow and is engaged via a lever on the dash. The GPA and GPW engines were functionally interchangeable but marked differently. Finding a GPA-marked engine is difficult, as many have been changed out to Willys or GPW engines.