Mike,

http://www.1954advance-design.com/chev-specs/1954-t-ser.jpg

The 5 after 54 is probably an S?

1954 6400 made in St Louis Missouri

However that number at the end is quite long
5051430 - 1000 = 5,050,430th truck off that assembly line (a very big number - something is wrong)

Can you post a photo of that ID/Serial-Number?

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.