Cheap way to convert my 1968 chevy C10 to 5 lug rear drum or disc

[dmack91]

If yours has the coil spring rear, you will need a 71-72 coil rear if you want a direct bolt-in. In 73, they went to all leaf sprung rears. While you can use them (I've done it twice), you will need to swap the trailing arm perches and panhard bar mount onto the replacement axle.