My dad just gave me a 1968 c30. When I released the parking brake it seems like the brakes did not move (the brakes are still on) could this truck have 4 wheel parking brakes? Did GM make them that way? I was looking in a catalog for brake cables; the catalog had front and rear cables. Are they talking about front wheel cables? How will I release the stuck brakes. They are stuck good, I tried to drag it with my suv in 4 wheel drive, No way!