To the best of my recollection, there is no such thing as an Apache 30.
Apache 31 = 1/2 ton 6 1/2' bed
Apache 32 = 1/2 ton 8' bed
Apache 36 = 3/4 ton
Apache 38 = 1 ton
Then it goes up to Viking's and then Spartans.
John
That is true up thru '59.
In '60 & '61 still used the Apache / Viking & Spartan names but the model #s went to 10 (1/2T), 20 (3/4T), 30(1T), ect.