If you put 1.5 ton fenders and radiator support on, that’s likely the problem. They’re different than 3100 fenders. The only repop grilles are for 3100-3600 trucks.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.