The numbers and letters I had was wrong. How can I find the vin with this information I got this update yesterday

Most likely you are misreading the first two digits. The R is actually a B meaning a 239 V-8. The Z is actually a 2 meaning the year--1952. The NR means the assembly plant in Norfolk, VA The 15320 is the sequential numbers for the order in which the truck was made.

It should read B2NR15320
Again thanks for the infor