Callies Performance Products Duramax 4340 Forged DS Crank 3.898 Stroke H76903FXXL This item fits both 2-door

This item fits both 2-door and 4-door models

A dwell control circuit ensures long

Pit Stop USA offers Bell BR1 Top Plate Kit - White 2070035 at low everyday prices

Know exactly where brake adjustments are set

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

Callies Performance Products Duramax 4340 Forged DS Crank 3.898 Stroke H76903FXXL This item fits both 2-doorProduct 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