I have my 47 1.5 ton grille in bits right now. I bought that same grille set but bare steel. Its a bit rough but fixes up OK ready for chroming. The one I received is made in Argentina.
The bars on the big bolts are two inch high and on the smaller trucks, one and three quarter inch. I think the lengths are the same or close enough. I can measure anything you want if you need a cross check. In
I have the original grille here.
Also I recommend a grille fastener kit, they have a load of bespoke fasteners.
