The 37 Chevrolet passenger car and Pickup grille shells are different in width and height. That is one or the other.
Yep, '37 Chevy - '38 has a different shaped opening for the grill. Hard to tell if it's a truck or car without measurements.
Opening measures 16 1/2 across the top and 13 1/2 at the bottom and 28 tall. Whole thing is about 3' tall overall.