This is probably a stupid question but...I have no idea what 3 bolt holes are for on the driver's side of the engine ('54 235). Nothing was attached to them when I got the truck. They're in an upsidedown triangle pattern. The upper 2 are about 9 - 10 inches from the front of the engine and 4 inches above the pan. The lower one is located below these 2 about 1 1/2 inches above the pan. Thanks