I have a 57 truck. I want to buy a 56 chrome grill as 57 are way too high and I like the look of the 56 anyway. The lower grill panel bar is bent to a point where a new one is needed. The catalog lists a 55-56 or a 57. If using a 56 grill on a 57 truck, should one order a 55-56 lower panel bar?