Making an old heavy duty shop truck, using a 12v diesel in a 1951 ford f3 but I'm limited on radiator space. I need to use a double pass rad to get both inlets on same side. I was planning on using generic aftermarket rad so it'll be 19" tall w daul core 1" alumin tubes Id be better if I could get away w a 26" width but if I had to I could cut and fab space for 28", but that's the max I have room for. I will doing some towing and hauling w it but mainly car type weight. And oh ya I'll be running an electric fan(s).

Will 26" be enough, 28"? I'm not real experience w diesel a yet so not for sure. Opinions?