sentences:  The GMC General and Chevrolet Bison were assembled in Pontiac, Michigan at Pontiac East Assembly (alongside the Chevrolet Bruin and GMC/WhiteGMC Brigadier).In 1966, GMC Truck and Coach introduced its first dedicated heavy-duty trucks, moving away from trucks adapted from the smaller C/K line.The division introduced two lines using a common cab, the H/J-Series (93-inch BBC) and the C/M-Series (112-inch BBC).