I'm looking at an auction site for some donor vehicles that have better front end sheet metal and doors than I have on my truck. I know the doors should fit ok, but I am wondering about the two outer front fenders. Should the fenders from the vehicles listed below fit my truck? They look visually the same.

My Truck
-1956 Chevy 6100 - VIN - 6A56F

Donor Trucks
-1957 Chevy 6400 - VIN V6B56K - I assume from the vin this is 1956 not a 1957 as listed on the site.
-1956 Chevy 4400 - VIN P255K - I assume this is actually a 1955 2nd series not a 1956 as listed on the site.
-1956 Chevy 6400 - VIN 6B57K - I assume this is actually a 1957 not a 1956 as listed on the site