Callies Performance Products Duramax 4340 Forged DS Crank 3.898 Stroke H76903FXXL Steel sockets have a 1/2"

Steel sockets have a 1/2" drive to work with most impact guns and a machined lug nut end (not hex)

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2005-2013 Chevrolet Corvette

A dwell control circuit ensures long

Callies Performance Products Duramax 4340 Forged DS Crank 3.898 Stroke H76903FXXL Steel sockets have a 1/2"Product Description: Crankshaft Durastar 3. 898 in Stroke Internal Balance Forged Steel GM Duramax Sold Individually Callies Performance Products began manufacturing high performance crankshafts in 1989. With many years of engineering and employee experience, Callies has grown to be the industry leader for innovative product design. Callies Performance Products takes pride in staying ahead of the competition with the latest high tech design and