http://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm1201.htmThe large fuse box was used 1950 and earlier.
The two-fuse box came in the 1951 models. (tail and stop lamps/lights)
Other lights would be fused through the light switch.
What lights are not working?
The 8v cludge battery on a 6v system puts a bit of a strain on 6v bulbs.
Sorry, I will not venture to guess what got fried. Someone will step you throught testing.
