Hy sask42, I will try to break down your serial number for you
2 - year 1942 or 52, must confirm by body style
15 - Chevrolet 2ton, with 224 engine in 1942, 235 in 1952
43 - Chassis with cab, wheelbase 160" [1942], 161" [1952]
02133 is the regular production number
I hope that helps some.
